Not sure if this is the right place to ask or not.
I have bought some of the 36v scooter batteries from JAG35. Hooking up chargers (whether wall wart or solar controller) appears to work just fine through the discharge port - with the JAG35 dongles and arduino sending the keep-alive signal.
I have two main problems:
1. Charging via the smaller charge port. If I hook up a small, 2A charger to the charge port, it works fine, but takes about 11 hours per battery from drained (just under 50 watts). If I hook up a 36v/18a golf cart charger to it - nothing. It doesn't even recognize it's hooked up. The same is true of the solar charge controller. Hooking it up to the discharge port is fine but it fails to even recognize the charge port. Is there a workaround? I'm ok disassembling and soldering if that's what it takes.
2. Discharge capacity. I've been testing using these (2-4 batteries in parallel) to charge my Bluetti AC200P and I can get around 670wh from 2 cells when the rated capacity should (assuming 100%) be around 920wh. Seems like a big miss - or is this normal?
I have bought some of the 36v scooter batteries from JAG35. Hooking up chargers (whether wall wart or solar controller) appears to work just fine through the discharge port - with the JAG35 dongles and arduino sending the keep-alive signal.
I have two main problems:
1. Charging via the smaller charge port. If I hook up a small, 2A charger to the charge port, it works fine, but takes about 11 hours per battery from drained (just under 50 watts). If I hook up a 36v/18a golf cart charger to it - nothing. It doesn't even recognize it's hooked up. The same is true of the solar charge controller. Hooking it up to the discharge port is fine but it fails to even recognize the charge port. Is there a workaround? I'm ok disassembling and soldering if that's what it takes.
2. Discharge capacity. I've been testing using these (2-4 batteries in parallel) to charge my Bluetti AC200P and I can get around 670wh from 2 cells when the rated capacity should (assuming 100%) be around 920wh. Seems like a big miss - or is this normal?