Bowlegs868
New Member
I'm considering getting a battery charger for my AGM batteries... looking for recommendations
Thanks in advance!
Thanks in advance!
AGM Battery Chargers?
- Thread starter Bowlegs868
- Start date
Uncommon specification of capacity. I don't know how to convert that into Ah.
Anyway, based on the dimensions/weight I would guess them at approx 120Ah each.
With 2 in parallel that would be 240Ah. As a general guideline 1/10 capacity is recommended, so in your case a 24A charger.
I would go for a Victron 25A. Victrons are decent, and can be adjusted for other battery types as well, so if you're going to upgrade it's just a matter of changing settings. They aren't cheap however.
Since those Eaton batteries are designed for UPS applications they don't fully match a offgrid/rv setup and I won't be surprised if they dont last very long.
Another option to consider is getting a charger/inverter combi. That might be easier and cheaper than having seperate parts.
Anyway, based on the dimensions/weight I would guess them at approx 120Ah each.
With 2 in parallel that would be 240Ah. As a general guideline 1/10 capacity is recommended, so in your case a 24A charger.
I would go for a Victron 25A. Victrons are decent, and can be adjusted for other battery types as well, so if you're going to upgrade it's just a matter of changing settings. They aren't cheap however.
Since those Eaton batteries are designed for UPS applications they don't fully match a offgrid/rv setup and I won't be surprised if they dont last very long.
Another option to consider is getting a charger/inverter combi. That might be easier and cheaper than having seperate parts.
Bowlegs868
New Member
I am annoyed by that but I did some research and someone had calculated it to be about 105Ah
Last edited:
Bowlegs868
New Member
I'm actually looking for an independent battery charger (not a charge controller).
This is concerning, though. So I'm wondering... which AGM battery is actually suited for off-grid applications?
Rednecktek
Solar Wizard
I've got 2 of the Ampeak 25a chargers and I've been very happy with them. The repair function has saved me a couple batteries so far to boot.
From another topic I understand TS has a 2S2P config, so requires a 24V charger.
That limits the options a little. The Victrons eg are up to 16A or so, and you're into the more expensive line for higher amps. But I'm sure other vendors might have better options.
I don't know what is locally available for you. For now I would stick to the Eatons. Eaton is decent stuff. Although they are primary designed for UPS applications, they will work, and since you have them just let them running till they fail.
Its not that they will fail, they can. From what I have seen they are simply not for your application, but a UPS and offgrid aren't much off. Only difference is a UPS battery is usually at high soc, without barely any use, where as a offgrid setup has more variation in SOC while charging / discharging. (UPS only runs on a power failure)
That limits the options a little. The Victrons eg are up to 16A or so, and you're into the more expensive line for higher amps. But I'm sure other vendors might have better options.
I don't know what is locally available for you. For now I would stick to the Eatons. Eaton is decent stuff. Although they are primary designed for UPS applications, they will work, and since you have them just let them running till they fail.
Its not that they will fail, they can. From what I have seen they are simply not for your application, but a UPS and offgrid aren't much off. Only difference is a UPS battery is usually at high soc, without barely any use, where as a offgrid setup has more variation in SOC while charging / discharging. (UPS only runs on a power failure)
Bowlegs868
New Member
Yeah, exactly! I learned that through my computer's UPS but I don't seem to find any off-grid specific batteries...
but like you said, I will stick with the Eaton batteries until they die
Bowlegs868
New Member
Ok, I will check those out... the repair function is a must! I need it
