Would like to have seen the experiment repeated with a single change: switch the batteries. Put the real Ryobi where the aftermarket battery was in the first test and the after market battery where the real Ryobi was and run the test again. I think this would either add validity to the initial conclusion or completely discredit it. Would be good to know.
The 6amp Ryobi battery seems to be the "High Performance" battery like the one that came with my lawn mower. It has the taller case because it may also have circuitry that allows it to communicate with lawn mower. When cutting with my lawn mower and I hit a thick or taller patch of grass, the motor ramps up so it doesn't stall, until I make it through that patch and then it goes back down to the normal speed. This is the same principle as the 18 V high performance tools and batteries. I have a second 6 amp battery that I purchased at Home Depot for my smaller 1st gen Ryobi lawn mower. It has a shorter case like the 4 amp battery that came with the mower, but only slightly larger and is not a "High Performance" battery. I can however also use it in the newer lawn mower to finish citting my yard if I start running out power on the HP battery. I also have found that the HP battery must be charged with the charger that came with the mower or it doesn't fully charge.
The "taller case" is because it's a 3-row battery (30 cells), not because of more electronics. The "6.0 Ah" knockoff battery here is a 2-row battery. It *would* be technically possible to get 6Ah out of a 2-row battery if 3000mAh cells were used but rest assured the cells in the knockoff battery are gonna be crap. There are two versions of the real Ryobi 6.0 battery though as you indicate. One is the OP40602 which is the older version that is 3-row. The newer one is the OP40604 which is a 2-row battery. As mentioned the first comes about its capacity by using 30 x 2000mAh cells; the latter uses 20 x 3000mAh cells. The slimmer version uses VTC6s as well which are premium cells; the bigger version uses cheap Eve, TenPower, etc. China cells. This is actually opposite most other batteries which Ryobi started to use cheaper cells in later versions. That said, 30 cells still bolsters the output capability so it should still perform well. There's not really an "HP" battery for the 40V line in the same sense as for ONE+ (18V)... The "additional pins" on the ONE+ batteries are indeed a data connection. The "additional pins" that are on the top of some of the 40V batteries are NOT additional signals at all. They are merely T1 and T2, just in a different location--same circuits, or in other words a mirror of those signals. I'm not sure which tools, if any, even utilise these. At first I thought they were for the fast charger but I don't see terminals on that to match up; perhaps a future revision or simply tools I haven't seen use these. For what purpose I'm not sure since they're the same signals as in the connector, but they had to have made them like that for a reason.
The mower adjusting its speed to compensate for higher load doesn't have anything to do with the battery, it's the control computer inside the mower sensing that the motor is bogging down and "throttling up" to compensate. All of the motor control is done by the mower itself, the battery just provides power.
@@john123abc201 This is what their website says about the 18 V high performance batteries so I assume that this would also pass over to the 40 V high performance batteries. It actually says that the batteries have "advanced electronics". "INTELLICELL battery technology features advanced electronics allowing batteries to last longer, think smarter and deliver up to 30% more power."
The genuine ryobi 6ah is now way smaller than that 6ah hp version you have. They must have changed something internally. I bought 3 9.6ah knockoffs for less than one 6ah ryobi. They are the same size and weight as my failed 6ah hp. I took one knockoff apart and it had the same configuration and number of cells, but the ics were arranged differently on the circuit board and the cells are different color. The knockoff actually mowed my entire yard while the ryobi stops with about 3 minutes of yard left, so I switch to the other battery in the mower. My knockoffs say 9.6ah but are likely around 7ah, which is totally fine. I'm storing them in a metal safe box in the garage just to be safe though 😅
Run time is good to know but equally if not more important is how many duty cycles can you get out of each? If the knockoff fails after a few dozen cycles then the higher price and 3 year warranty of the genuine Ryobi battery starts looking a lot more cost effective.
I have the older version of this, 40v 5 amp battery system. I'm going to upgrade to 40v 6amp system. Can I use the 5amp batteries on the 6amp system? I would think so just not going to run as long. Thanks
The Ryobi 40v is actually 36V nominal so its 36V*(2ah*3rows)=216wh. The Ryobi HP probably has 30 2ah cells in it and the the knock off probably has 20 1.5ah cells in it. So the knockoff is 36V*(1.5ah*2rows)=108wh.
To test the capacity, you can use a Kill a watt plug to test how many WH used to charge a battery. I test a Kobalt 4.0ah 40v Amazon battery and only used 100wh from empty to full. This make it no more than a 2.5ah battery.
Wondering using a light is an accurate comparison test. Wouldn’t the the starting and stopping of large power tool create a different level and type of power drain than a light - as in, your run time is going to be a lot different if you compare actual usage in a power tool.
I bought some knockoff batteries for the 40v brushless hybrid fan and on low with a knockoff 6ah battery I was getting about 12hrs and with the 7.5ah knockoff I was getting about 15 hours
thanks for the video. I test mine connecting (without inverter) to a hair dryer with a wattmeter in between. Any idea where one can get just a Ryobi 40V case?
After pondering this a bit I think a better test would be two comparable 40v loads against one another. I’m guessing Ryobi makes a 40v blower? Assessing run time of two 40v blowers removes inverter efficiency (under the known wattage variances) as extraneous variables.
There are several things amiss with the secondary market batteries. First, and the biggest issue is there is no consumer agency policing the manufacturer of these batteries and they can slap whatever capacity they want on the sticker and amazon/ebay page and get away with it. If consumer protection agencies made the marketplaces liable for the fraud this problem would go away real quick. Second, lower quality lithium cells also have worse discharge efficiency due to internal resistance. This resistance causes energy to be converted into heat as it moves through the cell before it can even be used. Third, the battery is physically smaller it is using fewer lithium cells in parallel inside. If you have less cells, the rate of discharge is higher per cell, so even more energy is wasted as heat. The Ryobi battery uses quality cells inside, and it is using more cells so each cell also has higher efficiency.
The 6 amp Ryobi battery that he has is most likely the "High Performance" battery. I believe that the taller battery has the electronic circuitry inside that allows it to communicate with the lawn mower or machine it is being used with. The standard 6 amp battery is the same size as the aftermarket battery that he has. I have both standard and HP Ryobi Batteries.
The problem that many tools consume rather large current (10-15Amps). That requires special (high current) cells, which Chinese guys do not bother finding. Besides, 6Ah battery contains 3 cells groups in parallel, which distributes as 5A/cell. The knockoff battery has only 2 cell groups in parallel, so not only the capacity is lower, but max current per cell is now 7.5A. Given they are using cheap 1600mA/h cells that are supposed to be discharged at 1.6A, they are discharging them at 5x rating. No surprise that at such overload the protection of the cells trips, and battery dies after 4-6 discharge cycles. Tool batteries are very special because they are using matched cells rated to high discharge current, and not "anything" that can be found in China cheap.
It would be interesting to test a lower capacity Ryobi battery against the knockoff. If the knockoff is only equivalent to a 4aHr genuine Ryobi, Then there go your cost savings.
I bought the knocked off battery. Definitely did not run as long as you would have thoght. Peess the fuel cell button, it has two lghts lit green. But no more power when you try to use it. Needs recharging
I bought 1 amazon new battery that stopped charging at 2 dots . Returned it. Bought 2 more from different supplier. 1 came at half charge ability. Other after 3 months stopped charging! I have 2 ryobi brand batteries 2+ years old still charging to full. Have you checked longevity?
I own 13 authentic ryobi 40 volt batteries. 5 work fine. 2 will only charge with a rigged up charger and 6 won't charge at all. And that doesn't include the one that was bad out of the pack. Or the one one that lasted two weeks. I also have one that sometimes just comes up as discharged after just coming off the charger. All of them are junk. Mercy time I need another battery I will be just rebuilding with quality cells.
I have a 6A and when i measure the voltage its 41,5V from the + and - terminal but when i measure some 1,5A Ryobi 36/40v they have around 20v on the same terminal, but it has 40v between + and T1 terminal ?
Before I finish the video, my guess is the knock lasts about 50% of the time. I will say, usally it's seem like the knock offers are bigger, funny this one is smaller. Feel like typically they are ramming these things full of cheap batteries so make up for it a little by adding more.
The batteries could be 6 amp hours BUT note the size. The ryobi is called high capacity... it's twice as thick... more cells in parallel vs series gives 6.0 amps but a longer run time.
funny that in the USA everything is bigger, your battery is 40 v and in europe its 36v, its the same with Dewalt 20v/18v. Think its the same batteries?
I’m a sucker for a good deal’ yes tool batteries are over priced… here’s what I’ve learned! Buy once cry once! When you buy something at a much cheaper price… you have to expect cheap performance’ If something is made cheaper it means made with cheaper parts to hit that price point’ Suck it up’ Buy Once Cry Once
I bought that battery out of desperation. It is absolutely not comparable to the 6ah Ryobi. As you can see it is only the size of the 4ah battery, and it weighs less than the 4ah as well. I use it I'm my Ryobi mower. Real-time use is about 75*/* of my Ryobi 4ah. It does not handle high discharge as well as the Ryobi 4ah battery. In a pinch this knockoff is o.k., and as $/time just about equals the Ryobi. But don't expect anywhere near the performance of a Ryobi.
The reason why the knockoff is smaller is because it doesn't have 6.0ah (36V) of USABLE capacity. It's 6.0ah NOMINAL. The genuine battery has 6.0ah usable and way more nominal. That's why the knockoff is cheaper and how it gets away with calling itself 6.0ah. There's also no telling battery cell quality, safety circuitry, or other component quality. Even if both used the same cells from the same factory, I can guarantee you TTI is getting the better quality cells.
The smaller size was a dead giveaway the knockoff was lying about it's capacity but then again they are half the price of the ryobi and function just fine in ryobi products, so pick your poison.
I bought the replacement on Amazon. I used it and it ran the Ryobi string trimmer just as well as the original battery. I saw the battery and decided to get a back up. So now the problem is that the battery is locked in. I brought it to the expert at the shop around the corner and he was unable to unlock it. He said that he had never seen that before. So a couple days ago I ordered another trimmer but used without a battery and charger which is fine since I have those already.The original battery is still charging and should be fine. If not, I will be making a trip to Home Depot. Spending a dollar trying to save a dime becomes very frustrating for me and for my neighbor who attempted to help me free the battery without success.
Don't buy the knock-off even at 1/10th the price. When you buy genuine you are not only buying capacity, you are buying the guarantee that it's not going to set your house on fire. What video should have done is opened the knock-off and the genuine and showed the insides. They open very easily.
I have six of these for at least two to three years and they are the same. I opened the guts and they are almost identicle, down to the factory where both the Amazon and ryobi came from.
@@Lyman-zt9wgAlmost identical? What does that even mean? The BMS is the important part. That's the part that keeps it from catching fire. It's can't be "almost identical". It needs to be genuine and certified. You are welcome to use knockoff grenades. That's what they are. Not my house.
Well I have both of those batteries the one I got on Amazon is the same as the one you have been and I put both on my lawn mower and the Amazon gave me more run time with the self-propelled then the Ryobi better
So saying your test was accurate, it wasn't. But let's say it's close enough. That knock off is 3 to 4 times cheaper then the name brand. So 2 are 50% cheaper and last longer. Therefore the knock off brand are twice as good as the authentic.
It's spelled "than", not "then". Jesus! Did you even finish high school? That math is bonkers. The knock-off batteries have a 50000% higher chance of catching your house on fire.
I bought this Amazon Chinese battery and looked inside: 20× 18650 3.7v 2p10s 5.55Whr That is 3Ahr 37v battery or 111Whr when new.
Would like to have seen the experiment repeated with a single change: switch the batteries. Put the real Ryobi where the aftermarket battery was in the first test and the after market battery where the real Ryobi was and run the test again.
I think this would either add validity to the initial conclusion or completely discredit it. Would be good to know.
The 6amp Ryobi battery seems to be the "High Performance" battery like the one that came with my lawn mower. It has the taller case because it may also have circuitry that allows it to communicate with lawn mower. When cutting with my lawn mower and I hit a thick or taller patch of grass, the motor ramps up so it doesn't stall, until I make it through that patch and then it goes back down to the normal speed. This is the same principle as the 18 V high performance tools and batteries.
I have a second 6 amp battery that I purchased at Home Depot for my smaller 1st gen Ryobi lawn mower. It has a shorter case like the 4 amp battery that came with the mower, but only slightly larger and is not a "High Performance" battery. I can however also use it in the newer lawn mower to finish citting my yard if I start running out power on the HP battery. I also have found that the HP battery must be charged with the charger that came with the mower or it doesn't fully charge.
The "taller case" is because it's a 3-row battery (30 cells), not because of more electronics. The "6.0 Ah" knockoff battery here is a 2-row battery. It *would* be technically possible to get 6Ah out of a 2-row battery if 3000mAh cells were used but rest assured the cells in the knockoff battery are gonna be crap. There are two versions of the real Ryobi 6.0 battery though as you indicate. One is the OP40602 which is the older version that is 3-row. The newer one is the OP40604 which is a 2-row battery. As mentioned the first comes about its capacity by using 30 x 2000mAh cells; the latter uses 20 x 3000mAh cells. The slimmer version uses VTC6s as well which are premium cells; the bigger version uses cheap Eve, TenPower, etc. China cells. This is actually opposite most other batteries which Ryobi started to use cheaper cells in later versions. That said, 30 cells still bolsters the output capability so it should still perform well.
There's not really an "HP" battery for the 40V line in the same sense as for ONE+ (18V)... The "additional pins" on the ONE+ batteries are indeed a data connection. The "additional pins" that are on the top of some of the 40V batteries are NOT additional signals at all. They are merely T1 and T2, just in a different location--same circuits, or in other words a mirror of those signals. I'm not sure which tools, if any, even utilise these. At first I thought they were for the fast charger but I don't see terminals on that to match up; perhaps a future revision or simply tools I haven't seen use these. For what purpose I'm not sure since they're the same signals as in the connector, but they had to have made them like that for a reason.
The mower adjusting its speed to compensate for higher load doesn't have anything to do with the battery, it's the control computer inside the mower sensing that the motor is bogging down and "throttling up" to compensate. All of the motor control is done by the mower itself, the battery just provides power.
@@rolandm9750 That's great info about the newer batteries having nice Murata cells, thanks!
@@john123abc201 This is what their website says about the 18 V high performance batteries so I assume that this would also pass over to the 40 V high performance batteries. It actually says that the batteries have "advanced electronics".
"INTELLICELL battery technology features advanced electronics allowing batteries to last longer, think smarter and deliver up to 30% more power."
Just look inside. 6Ahr label but 1.5Ah ×2×10= 37v 3Ahr battery inside.
Half the power and probably crap cells that'll will not last as many years? 2/3 the cost? No thanks, I'll stick to the Name brand.
The genuine ryobi 6ah is now way smaller than that 6ah hp version you have. They must have changed something internally. I bought 3 9.6ah knockoffs for less than one 6ah ryobi. They are the same size and weight as my failed 6ah hp. I took one knockoff apart and it had the same configuration and number of cells, but the ics were arranged differently on the circuit board and the cells are different color. The knockoff actually mowed my entire yard while the ryobi stops with about 3 minutes of yard left, so I switch to the other battery in the mower. My knockoffs say 9.6ah but are likely around 7ah, which is totally fine. I'm storing them in a metal safe box in the garage just to be safe though 😅
What was the knockoff (link if you have it) for the 6A 40V battery. Thanks in advance for your assistance.
Thanks again for the great review/video. Hope you are doing well and enjoying the summer 👍❤️🙏
Run time is good to know but equally if not more important is how many duty cycles can you get out of each? If the knockoff fails after a few dozen cycles then the higher price and 3 year warranty of the genuine Ryobi battery starts looking a lot more cost effective.
Thanks John!
I have the older version of this, 40v 5 amp battery system. I'm going to upgrade to 40v 6amp system. Can I use the 5amp batteries on the 6amp system? I would think so just not going to run as long. Thanks
The Ryobi 40v is actually 36V nominal so its 36V*(2ah*3rows)=216wh.
The Ryobi HP probably has 30 2ah cells in it and the the knock off probably has 20 1.5ah cells in it. So the knockoff is 36V*(1.5ah*2rows)=108wh.
The older and smaller 40v 6ah Ryobi probably has 20 3ah cells in it so that one is 36V*(3ah*2rows)=216wh
To test the capacity, you can use a Kill a watt plug to test how many WH used to charge a battery. I test a Kobalt 4.0ah 40v Amazon battery and only used 100wh from empty to full. This make it no more than a 2.5ah battery.
Wondering using a light is an accurate comparison test. Wouldn’t the the starting and stopping of large power tool create a different level and type of power drain than a light - as in, your run time is going to be a lot different if you compare actual usage in a power tool.
Correct runtimes are directly inversely proportional to power usage. But it goes to show that the genuine will last twice as long in any case.
I bought some knockoff batteries for the 40v brushless hybrid fan and on low with a knockoff 6ah battery I was getting about 12hrs and with the 7.5ah knockoff I was getting about 15 hours
thanks for the video. I test mine connecting (without inverter) to a hair dryer with a wattmeter in between. Any idea where one can get just a Ryobi 40V case?
Something seems amiss. Both 40v a 6ah shouldn’t have such massive variance. What is the expected time that a 100 watt bulb should last at 40v / 6ah?
After pondering this a bit I think a better test would be two comparable 40v loads against one another. I’m guessing Ryobi makes a 40v blower? Assessing run time of two 40v blowers removes inverter efficiency (under the known wattage variances) as extraneous variables.
There are several things amiss with the secondary market batteries.
First, and the biggest issue is there is no consumer agency policing the manufacturer of these batteries and they can slap whatever capacity they want on the sticker and amazon/ebay page and get away with it. If consumer protection agencies made the marketplaces liable for the fraud this problem would go away real quick.
Second, lower quality lithium cells also have worse discharge efficiency due to internal resistance. This resistance causes energy to be converted into heat as it moves through the cell before it can even be used.
Third, the battery is physically smaller it is using fewer lithium cells in parallel inside. If you have less cells, the rate of discharge is higher per cell, so even more energy is wasted as heat.
The Ryobi battery uses quality cells inside, and it is using more cells so each cell also has higher efficiency.
The 6 amp Ryobi battery that he has is most likely the "High Performance" battery. I believe that the taller battery has the electronic circuitry inside that allows it to communicate with the lawn mower or machine it is being used with. The standard 6 amp battery is the same size as the aftermarket battery that he has. I have both standard and HP Ryobi Batteries.
@@silveragnes8256 Aren't the inverters identical? The only variable in this test seems to be the implied Watthour by two different manufactures.
The problem that many tools consume rather large current (10-15Amps). That requires special (high current) cells, which Chinese guys do not bother finding. Besides, 6Ah battery contains 3 cells groups in parallel, which distributes as 5A/cell. The knockoff battery has only 2 cell groups in parallel, so not only the capacity is lower, but max current per cell is now 7.5A. Given they are using cheap 1600mA/h cells that are supposed to be discharged at 1.6A, they are discharging them at 5x rating. No surprise that at such overload the protection of the cells trips, and battery dies after 4-6 discharge cycles. Tool batteries are very special because they are using matched cells rated to high discharge current, and not "anything" that can be found in China cheap.
I have a RYOBI Cordless Lawn Mower 20 in. 40-Volt Lithium-Ion Self Propelled Brushless - BrickSeek. Can I use the 40V 6hr when it came with the 5hr?
It would be interesting to test a lower capacity Ryobi battery against the knockoff. If the knockoff is only equivalent to a 4aHr genuine Ryobi, Then there go your cost savings.
I bought the knocked off battery. Definitely did not run as long as you would have thoght.
Peess the fuel cell button, it has two lghts lit green. But no more power when you try to use it. Needs recharging
So the knock-off version is FRAUDULENTLY mis-labeled. If it only ran half the time, then it is actually closer to 3AH.
Would like to see comparison between 8ah knockoff vs 6ah Ryobi. Knockoff would still be cheaper so maybe that would be a "fair" comparison?
I bought 1 amazon new battery that stopped charging at 2 dots . Returned it. Bought 2 more from different supplier. 1 came at half charge ability. Other after 3 months stopped charging! I have 2 ryobi brand batteries 2+ years old still charging to full. Have you checked longevity?
I own 13 authentic ryobi 40 volt batteries. 5 work fine. 2 will only charge with a rigged up charger and 6 won't charge at all. And that doesn't include the one that was bad out of the pack. Or the one one that lasted two weeks. I also have one that sometimes just comes up as discharged after just coming off the charger. All of them are junk. Mercy time I need another battery I will be just rebuilding with quality cells.
That was so helpful, thank you!
I have a 6A and when i measure the voltage its 41,5V from the + and - terminal but when i measure some 1,5A Ryobi 36/40v they have around 20v on the same terminal, but it has 40v between + and T1 terminal ?
Before I finish the video, my guess is the knock lasts about 50% of the time.
I will say, usally it's seem like the knock offers are bigger, funny this one is smaller. Feel like typically they are ramming these things full of cheap batteries so make up for it a little by adding more.
The batteries could be 6 amp hours BUT note the size. The ryobi is called high capacity... it's twice as thick... more cells in parallel vs series gives 6.0 amps but a longer run time.
good video
are the knock offs safe? do they last as long?
They last longer
@@ulucio86
Wow , I get them at 50 a pop. 🎉
great info, thank you
funny that in the USA everything is bigger, your battery is 40 v and in europe its 36v, its the same with Dewalt 20v/18v. Think its the same batteries?
I BOUGHT A COUPLE KNOCKOFFS LAST YEAR, THEY WOULDNT CHARGE, SENT THEM BACK.
I’m a sucker for a good deal’ yes tool batteries are over priced… here’s what I’ve learned!
Buy once cry once!
When you buy something at a much cheaper price… you have to expect cheap performance’
If something is made cheaper it means made with cheaper parts to hit that price point’
Suck it up’
Buy Once Cry Once
I got 20 minutes of run time on my mower, remind you grass dry 8 in. tall cutting at 3 1/2 high going to try again they say 40 minutes so we'll see
China batteries would never lie about their capacity ?!? Sacrilege 😂🤣
They are both China batteries.
@@mattditchey8673 No. The genuine battery uses Samsung or LG cells.
@@firstlast9292 built in China. brand name is meaningless.
@@mattditchey8673 Pretty dumb take. But you do you.
@@firstlast9292 Sad that you cannot handle the truth. oh well.
Size, alone, tells you a lot.
I bought that battery out of desperation. It is absolutely not comparable to the 6ah Ryobi. As you can see it is only the size of the 4ah battery, and it weighs less than the 4ah as well. I use it I'm my Ryobi mower. Real-time use is about 75*/* of my Ryobi 4ah. It does not handle high discharge as well as the Ryobi 4ah battery. In a pinch this knockoff is o.k., and as $/time just about equals the Ryobi. But don't expect anywhere near the performance of a Ryobi.
The reason why the knockoff is smaller is because it doesn't have 6.0ah (36V) of USABLE capacity. It's 6.0ah NOMINAL. The genuine battery has 6.0ah usable and way more nominal.
That's why the knockoff is cheaper and how it gets away with calling itself 6.0ah.
There's also no telling battery cell quality, safety circuitry, or other component quality. Even if both used the same cells from the same factory, I can guarantee you TTI is getting the better quality cells.
The smaller size was a dead giveaway the knockoff was lying about it's capacity but then again they are half the price of the ryobi and function just fine in ryobi products, so pick your poison.
It's not 6ah or 240w likely 3 or 4 ah
It’s dumb to buy a shitty battery for $80. Buy a refurb tool and battery for $110. Makes more sense.
Where?
I bought the replacement on Amazon. I used it and it ran the Ryobi string trimmer just as well as the original battery. I saw the battery and decided to get a back up. So now the problem is that the battery is locked in. I brought it to the expert at the shop around the corner and he was unable to unlock it. He said that he had never seen that before. So a couple days ago I ordered another trimmer but used without a battery and charger which is fine since I have those already.The original battery is still charging and should be fine. If not, I will be making a trip to Home Depot. Spending a dollar trying to save a dime becomes very frustrating for me and for my neighbor who attempted to help me free the battery without success.
@@nunziobartalino9949 sorry to hear about your bad experience.
Don't buy the knock-off even at 1/10th the price. When you buy genuine you are not only buying capacity, you are buying the guarantee that it's not going to set your house on fire. What video should have done is opened the knock-off and the genuine and showed the insides. They open very easily.
I have six of these for at least two to three years and they are the same. I opened the guts and they are almost identicle, down to the factory where both the Amazon and ryobi came from.
@@Lyman-zt9wgAlmost identical? What does that even mean? The BMS is the important part. That's the part that keeps it from catching fire. It's can't be "almost identical". It needs to be genuine and certified. You are welcome to use knockoff grenades. That's what they are. Not my house.
@@Lyman-zt9wg i’ve had the same results plus I never charge batteries like that without me being present.
Knocks offs last twice as long as the real ryobi battery
100%.
Well I have both of those batteries the one I got on Amazon is the same as the one you have been and I put both on my lawn mower and the Amazon gave me more run time with the self-propelled then the Ryobi better
So saying your test was accurate, it wasn't. But let's say it's close enough. That knock off is 3 to 4 times cheaper then the name brand. So 2 are 50% cheaper and last longer. Therefore the knock off brand are twice as good as the authentic.
It's spelled "than", not "then". Jesus! Did you even finish high school? That math is bonkers. The knock-off batteries have a 50000% higher chance of catching your house on fire.
Those knock off batteries are always junk.
Sounds like it’s a 4ah
Bought 6ah Ryobi knock off batteries and they are total junk!!!
to much b.s. to little data. Freaking blaugh blaugh