Just bought one from you guys, really looking forward to getting it installed. If I understand correctly, because I can turn it off, I wont need a resistor to connect to the battery terminals of the inverter on install. It is a common youtube tip to touch a resistor in circuit to the positive contact when first installing the battery, so you slowly pull current from the battery to charge the inverter capacitors (typically get arcing without the resistor due to high current draw without the resistor).
Yes, but they charge crazy fast, last 10 years, have a smaller and lighter footprint, and a greater depth of charge that other batteries. I have a pair of these running an off-grid setup that runs an RV and power for a barn at a remote property. In the heat of the day the system runs AC, charges the batteries, and keeps other smaller electronics running no problem. At night the AC cycles in the RV, and occasionally the backup generator will kick on, but not for very long and I certainly don't have to leave it running continuously like I used to before I got the system. I have an appreciation for these batteries fitting well within the constraints of my setup.
And they eat 30 watts per hour just to run that BMS and other "features" to make them safe. I have 10 of these pieces of garbage so I'm losing 7.2kWH a damn day. I'd tried to get help in determining why I was losing so much of my harvested PV and got the run around several times before finding this little gem out (after having invested in 6 additional batteries on top of the 4 I had in an effort to power me through my worst months of uptake). Ask me how sick I am!
I hope you never bought one of these overpriced paperweights. I own 10. You know how much they consume to run that retarded BMS (that you're not supposed to access according to their Applications Engineer)? 30 watts per hour. For me, that's now 7.2kWH in a single day! And according to Fortress, the BMS software giving you any details on how these batteries are running is for engineers only. Biggest waste of $35,100 I can ever image spending so I'm now on a mission to make sure EVERYONE understands. These numbers have been confirmed by Fortress on multiple occasions to myself and others trying to help me. And they offer no explanation nor apologies for this ridiculous waste of my power. Their solution? Add wind or hydro! smh I'd prefer an apology and a refund.
Hi good day need your help I have I Fortress Power LFP-10 Lithium Ferro Phosphate 10.24 kWh Battery but the bms is not waking up how can I reset the bms please
Did you ever receive help from Fortress on this? How much of your battery does the BMS on that one waste? The eFlex eats a whopping 30 watts per hour! Sure makes it a poor choice for off-grid. I hope you fared better than I did in trusting Fortress with your energy storage needs!
I AM LOOKING TO , , MOVE AWAY FROM DESIEL GENSET 10.000WAT ,, $$, I NEED TO MOVE FORWARD, LOOKING FOR MY SEMI TRK , THESE BATTERIES , HAVE A 275 AMP ALTERNATOR, ???
Almost $4k for 100AH at 48 volts what a JOKE! You can get top branded AGM batteries $200 each. So for the same price of this you could get 1200AH that's 10 times the power storage for the same price. See how far 100AH will get you after a few days of no sun or wind.
Those top branded AGM batteries won't have a C/2 continuous discharge rate nor a 10 year warranty though. AGM still has a role to play in the industry (ex. undersized battery banks when off grid) but there is a new, larger market being met by lithium batteries.
I agreed with you on the price they are pricy. but there are some details that you are missing 100amps at 48 volts is at least 5000 watts, which is 4 times more capacity than a 100 amps at 12 volts AGM battery, and also the lead acid batteries can only be discharged to 50% of their rated capacity or you risk damaging them? in other words 100 amps 12volts AGM battery has only 50 amps or 600 watts usable capacity, they also are 3 times heavier than lithium and bigger, so for you to have the same capacity of one of these lithium 48volts 100amps battery you would need 8 of 100 amps 12 volts AGMs. yes they are still more affordable than these lithium batteries. but there are other more affordable lithium batteries brands on the market, just saying
You had it right. It IS a joke. They don't tell you that they're fancy "super safe" BMS and other "features" eat 30 watts an hour and if you were dumb like me and bought 10 to get you through periods of low PV, you'd see a waste of 7.2kWHs just to run the freaking things! I would have chosen a different brand and model altogether had I realized this. Instead I started with 4 batteries, watched my power drop over several days to the point the sun couldn't bring the batteries up for several days even without a load. Turns out with my two Sol-Arks and 10 batteries, I lose 10kWH per day. I don't even break even with my PV uptake in a single day so I now have a system that cost me over $70k (DIY) that does NOTHING for me most of the winter when I need to have at least something to power my damn water pump. Buyer beware! I just want to know what others have found with THEIR systems so I don't waste this kind of money again!
Excellent video!!
Just bought one from you guys, really looking forward to getting it installed. If I understand correctly, because I can turn it off, I wont need a resistor to connect to the battery terminals of the inverter on install. It is a common youtube tip to touch a resistor in circuit to the positive contact when first installing the battery, so you slowly pull current from the battery to charge the inverter capacitors (typically get arcing without the resistor due to high current draw without the resistor).
Great introduction!
$3,850 for 100AH. let that sink in.
Yes, but they charge crazy fast, last 10 years, have a smaller and lighter footprint, and a greater depth of charge that other batteries. I have a pair of these running an off-grid setup that runs an RV and power for a barn at a remote property. In the heat of the day the system runs AC, charges the batteries, and keeps other smaller electronics running no problem. At night the AC cycles in the RV, and occasionally the backup generator will kick on, but not for very long and I certainly don't have to leave it running continuously like I used to before I got the system. I have an appreciation for these batteries fitting well within the constraints of my setup.
And they eat 30 watts per hour just to run that BMS and other "features" to make them safe. I have 10 of these pieces of garbage so I'm losing 7.2kWH a damn day. I'd tried to get help in determining why I was losing so much of my harvested PV and got the run around several times before finding this little gem out (after having invested in 6 additional batteries on top of the 4 I had in an effort to power me through my worst months of uptake). Ask me how sick I am!
Wish i could afford 2 of these.
You're really paying for a superbly built bms , seems to me.
I hope you never bought one of these overpriced paperweights. I own 10. You know how much they consume to run that retarded BMS (that you're not supposed to access according to their Applications Engineer)? 30 watts per hour. For me, that's now 7.2kWH in a single day! And according to Fortress, the BMS software giving you any details on how these batteries are running is for engineers only. Biggest waste of $35,100 I can ever image spending so I'm now on a mission to make sure EVERYONE understands. These numbers have been confirmed by Fortress on multiple occasions to myself and others trying to help me. And they offer no explanation nor apologies for this ridiculous waste of my power. Their solution? Add wind or hydro! smh I'd prefer an apology and a refund.
Yes👍🔋⚡
Hi good day need your help I have I
Fortress Power LFP-10 Lithium Ferro Phosphate 10.24 kWh Battery but the bms is not waking up how can I reset the bms please
Did you ever receive help from Fortress on this? How much of your battery does the BMS on that one waste? The eFlex eats a whopping 30 watts per hour! Sure makes it a poor choice for off-grid. I hope you fared better than I did in trusting Fortress with your energy storage needs!
I AM LOOKING TO , , MOVE AWAY FROM DESIEL GENSET 10.000WAT ,, $$, I NEED TO MOVE FORWARD, LOOKING FOR MY SEMI TRK , THESE BATTERIES , HAVE A 275 AMP ALTERNATOR, ???
Almost $4k for 100AH at 48 volts what a JOKE! You can get top branded AGM batteries $200 each. So for the same price of this you could get 1200AH that's 10 times the power storage for the same price. See how far 100AH will get you after a few days of no sun or wind.
Those top branded AGM batteries won't have a C/2 continuous discharge rate nor a 10 year warranty though. AGM still has a role to play in the industry (ex. undersized battery banks when off grid) but there is a new, larger market being met by lithium batteries.
I agreed with you on the price they are pricy. but there are some details that you are missing 100amps at 48 volts is at least 5000 watts, which is 4 times more capacity than a 100 amps at 12 volts AGM battery, and also the lead acid batteries can only be discharged to 50% of their rated capacity or you risk damaging them? in other words 100 amps 12volts AGM battery has only 50 amps or 600 watts usable capacity, they also are 3 times heavier than lithium and bigger, so for you to have the same capacity of one of these lithium 48volts 100amps battery you would need 8 of 100 amps 12 volts AGMs. yes they are still more affordable than these lithium batteries. but there are other more affordable lithium batteries brands on the market, just saying
You had it right. It IS a joke. They don't tell you that they're fancy "super safe" BMS and other "features" eat 30 watts an hour and if you were dumb like me and bought 10 to get you through periods of low PV, you'd see a waste of 7.2kWHs just to run the freaking things! I would have chosen a different brand and model altogether had I realized this. Instead I started with 4 batteries, watched my power drop over several days to the point the sun couldn't bring the batteries up for several days even without a load. Turns out with my two Sol-Arks and 10 batteries, I lose 10kWH per day. I don't even break even with my PV uptake in a single day so I now have a system that cost me over $70k (DIY) that does NOTHING for me most of the winter when I need to have at least something to power my damn water pump. Buyer beware! I just want to know what others have found with THEIR systems so I don't waste this kind of money again!