Recent content by MisterSandals

Remove the balance wires and set the cell count to 1. Then charge. The voltage range is narrow, probably 3.6 to 3.65.

It definitely does support a single cell: Air8 support 1~8S Life, Lilon, Lipo, ULiHv batteries, even includes the ULiHv battery with 4.45V/cell. and it also support 1~12S Pb battery and 1~16S NiMH/Cd battery.

I run 24V DC server fans in conjunction with DC water pumps for a solar swamp cooler. Also have a server fan to help RV propane fridge coil circulation. (surprising how much this helps!)

The experts have chimed in on similar scenario (still a guess that this is your issue): https://diysolarforum.com/threads/neutral-ground-bond-totally-off-grid-w-generator-and-reliable-inverter.65956/

1000Ah x .7 / 4A = 175h (7.29 days) When did you start?

Agreed but a little 8Ah cell (8Ah x 3.2V = 25.6Wh) may not last long with a BMS, especially with bluetooth or other connectivity. Thats about 3 months x 30 days/m x 24h/d = 2160h 25.6Wh x 4 cells = 102.4Wh 102.4Wh / 2160h = .05W If the BMS uses more than .05W that is enough to fully drain...

First off, I'm not qualified to give a definitive answer. My guess is that someone who knows will chime in with a solution that may involve removing the neutral bond on your generator when its connected to your (already bonded) inverter. And your generator be rebonded later for stand alone use.

Yes. I have a couple ISDT chargers so i think your Air8 can charge a single cell. Charge the one cell to about 3V and the Air8 should recognize it with the balance wires. You do not need to disassemble the battery to charge one cell. I suspect your BMS drained your battery.

I think he's asking whether your generator's neutral is bonded (connected) to the ground (green wire connected to a white wire or bus with white wires on it). This would probably be done in the generator output panel. Your XW6048 almost certainly has this neutral bond. It may be a qualifying...

Do you have access to the cell voltages? I'd bet one cell drops below the low voltage cutoff and the BMS cuts out. This does not explain how charging makes it jump to 100%. But why are you hitting it with 16V?

Click on the link in my signature, there are more goodies in there. They were not created by me.

Definitely! Consider it just like any other 8x 240Ah cells combined to make an 25.6V battery.

4000W / 375V = 10.66A This says 10Awg copper (standard solar wire) is plenty...

How many volts, amps and what distance is the wire run?