Thoughts on the AOlithium 51.2 server rack lithium battery -48v

[Kremer]

@Kremer Once these batteries come back into stock, is it possible to top balance these batteries using the inverter/charger if I set the voltage for the battery profile and step it up like you are with the bench charger? Or would I be better off getting a 48v golfcart charger where I can set the voltage at a lower amperage? My inverter is a victron quattro 48/15000.

Possible if you can adjust the voltage. I didn’t do any amp limiting, just slowly dialed up the voltage as the BMS would allow.

 

[Tatertot51804]

I've been considering getting some of these because of the price. But this thread raises a lot of good points about issues they are having. Mine would not be in storage and would get used every day so I'm wondering if I would have the same issues that Will had with his.

 

[Trenton Smith]

Kremer,

What brand of charger to you have, or what would you would recommend for balancing these batteries?

 

[Kremer]

Kremer,

What brand of charger to you have, or what would you would recommend for balancing these batteries?

I used a 60V/5A adjustable/lab power supply. It worked well.

 

[Trenton Smith]

Thanks for help!

 

[Kremer]

Thanks for help!

Welcome. I’d be happy to help when you get to it if there are questions, feel free to PM.

 

[chilly2]

I see they're running another sale ($1099 USD). How are they panning out for everyone here who bought?

 

[Kremer]

I see they're running another sale ($1099 USD). How are they panning out for everyone here who bought?

I’m still happy with my two since balancing them.