Would you trust leaving one of these chargers attached permanently to a 12v 100ah LifePO4 battery? I have a radio repeater located at our lake house and would like to have it operational even during a utility power outage. I have utility AC power at the house, which is fairly reliable UNTIL a bad storm hits. I don’t have solar yet and we rely on a few Honda portable gasoline gensets for the occasional storm use. The repeaters use 12vdc power (11-14) with nominal 3a current draw and 13-15a when transmitting. I have been using DC power supplies with a home built lead acid charger / transfer relay and it’s time to for the 3 year replacement of the batteries ($600 + delivery for 4x 6volt Trojan flooded lead acid). So.. it seems like an ideal time to go LifePO4. Thanks!
@@trailertimssmokeandwires211 It's an Ampere Time 100 ah, yes it has a BMS. I got it to 13.6 volts which is actually fully charged. What is the benefit of getting it between 14.2-14.6 volts?
@@DoobSac most BMS top balance the cells at 14.4 volts. Let the charger go untill it stops. If you have a shunt or an amp clamp you will see current drop after it reaches 14.4. They charge to 14.4, but after charging and disconnecting the charger it will drop to 13.8 . Then stay between 13.2 and 13.8 for most of its capacity. Take a look at Battle Born battery voltage vs state of charge table. It should be similar to yours. How long have you been charging it ?
@@trailertimssmokeandwires211 Does the NOCO keep charging even when the LED light is solid green? It quickly went down to 13.7 after I turned the charger off.
i have a converter question. im in the same boat as you i m wondering how much your convert WILL charge the lithium. my converter puts out 15.3 v...in between using the noco could i use my converter?
Does anyone know the lithium charge specs? I have a renogy 200ah using a 10x2, using one channel to charge my lithium. The battery has depleted to below 50% and the noco charger is still showing fully charged. If i turn the charger on then off again it then begins charging. Im curious if it will auto detect the low capacity and initiate a charge or will I have to do a reset on the charger to initialize? thanks
This product may work great for Lithium but doe not work very well on wet cell deep cycle batteries. Voltage is not high enough to adequately activate chemistry on many wet cells
Looks like your battery has a max charge rate of 8 amps and the voltage of this battery may be a bit higher than a typical RV lithium replacement like I am using. Also your battery does not have a BMS which can make charging incorrectly more dangerous. I would recommend using manufacturers recommended charger. Cheers, Trailer Tim
⛔ Hello, I have a 75 ampere battery, what is the appropriate charger for 5 ampere or 10 ampere, and is the maintenance feature effective (3 year old battery) Thank you ♥
I have a noco genius 10 on a new Renogy 100 ah AGM/SLA, why is "Maintenance voltage" only 12.8- 13 volts, instead of !3.5 volts like other maintenance chargers I have had?
Mine gets to 14 volts or so then jumps up to 18-20 volts and starts saying over voltage. When I unplug it my voltage stabilizes. Does anyone know what's causing this?
I think the 10 AMP version has other features that the Genius 5 didn't have like 12V Repair and Supply. Those two things may come in handy for the extra $30 otherwise I agree that the 5 AMP version would be enough with a battery capacity of 120ah.
Bought one because of your review. Thank you
Would you trust leaving one of these chargers attached permanently to a 12v 100ah LifePO4 battery?
I have a radio repeater located at our lake house and would like to have it operational even during a utility power outage.
I have utility AC power at the house, which is fairly reliable UNTIL a bad storm hits.
I don’t have solar yet and we rely on a few Honda portable gasoline gensets for the occasional storm use.
The repeaters use 12vdc power (11-14) with nominal 3a current draw and 13-15a when transmitting.
I have been using DC power supplies with a home built lead acid charger / transfer relay and it’s time to for the 3 year replacement of the batteries ($600 + delivery for 4x 6volt Trojan flooded lead acid).
So.. it seems like an ideal time to go LifePO4.
Thanks!
I have the same charger and it stops charging my 100ah Lifepo4 on the lithium setting at 13.5 volts. Do you have any clue why?
Which battery do you have. Does it have a built in BMS as mine does ?
@@trailertimssmokeandwires211 It's an Ampere Time 100 ah, yes it has a BMS. I got it to 13.6 volts which is actually fully charged. What is the benefit of getting it between 14.2-14.6 volts?
@@trailertimssmokeandwires211 I used it today and now I'm charging it . I just checked it and it's at 14.1 volts and still going up.
@@DoobSac most BMS top balance the cells at 14.4 volts. Let the charger go untill it stops. If you have a shunt or an amp clamp you will see current drop after it reaches 14.4. They charge to 14.4, but after charging and disconnecting the charger it will drop to 13.8 . Then stay between 13.2 and 13.8 for most of its capacity. Take a look at Battle Born battery voltage vs state of charge table. It should be similar to yours. How long have you been charging it ?
@@trailertimssmokeandwires211 Does the NOCO keep charging even when the LED light is solid green? It quickly went down to 13.7 after I turned the charger off.
🛑 Hi, thanks for the information. How long does it take to maintain the battery in an hour ??? And can he repair a 4-year-old battery ?? ⛔
They do have biger Amp charges now
i have a converter question. im in the same boat as you i m wondering how much your convert WILL charge the lithium. my converter puts out 15.3 v...in between using the noco could i use my converter?
the NOCO is AC powered. maybe you should look into a DC to DC Lifepo charger.
Does anyone know the lithium charge specs? I have a renogy 200ah using a 10x2, using one channel to charge my lithium. The battery has depleted to below 50% and the noco charger is still showing fully charged. If i turn the charger on then off again it then begins charging. Im curious if it will auto detect the low capacity and initiate a charge or will I have to do a reset on the charger to initialize?
thanks
This product may work great for Lithium but doe not work very well on wet cell deep cycle batteries. Voltage is not high enough to adequately activate chemistry on many wet cells
Can I charge my Anti Gravity Lithium Battery (Ag-1201) 12cell with this?
Looks like your battery has a max charge rate of 8 amps and the voltage of this battery may be a bit higher than a typical RV lithium replacement like I am using. Also your battery does not have a BMS which can make charging incorrectly more dangerous. I would recommend using manufacturers recommended charger.
Cheers,
Trailer Tim
⛔ Hello, I have a 75 ampere battery, what is the appropriate charger for 5 ampere or 10 ampere, and is the maintenance feature effective (3 year old battery) Thank you ♥
Are you referring to a 75 amp hour and is it lead acid or Lithium ?
@@trailertimssmokeandwires211 lead acid
lol. the NOCO 25amp and 50amps charger cost MORE than the batteries.
I have a noco genius 10 on a new Renogy 100 ah AGM/SLA, why is "Maintenance voltage" only 12.8- 13 volts, instead of !3.5 volts like other maintenance chargers I have had?
Mine gets to 14 volts or so then jumps up to 18-20 volts and starts saying over voltage. When I unplug it my voltage stabilizes. Does anyone know what's causing this?
If we are talking about lithium, it's probably tripping the BMS
I wanted to see the Noco charge a battery. This was useless to me.
Just buy another one and use them both at the same time. 20 amp charge 🙌
View 600!!
It seems like big time under kill to use a 10 amp Noco on a 100 AH lithium that's capable of taking 40 amps.
I think the 10 AMP version has other features that the Genius 5 didn't have like 12V Repair and Supply. Those two things may come in handy for the extra $30 otherwise I agree that the 5 AMP version would be enough with a battery capacity of 120ah.
@@chrismcleod2411 Rick is saying a higher amperage charger should be used since the lithium can take 40A.