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Ac200 80v ( 2 36v batteries in series)on solar input

greengooseman

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Oct 4, 2020
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Just started playing with my Ac200 today. I had (2) 36v scooter packs, each with 30a bms. Voltages were only 31 each. Put them in series and got 711w @ 60v for a short time, then voltage dropped to 30v. Imm assuming one battery shut off by bms.

I then charged them both to 41v and only got 400w @ 80v on solar input. Approx 5a.

is a bms limiting the current? any ideas why? I haven’t set up my solar yet.

**I discharged it to 88% before trying this,.

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If the AC200 battery is nearing full charge, it can only accept so much current.
 
Just started playing with my Ac200 today. I had (2) 36v scooter packs, each with 30a bms. Voltages were only 31 each. Put them in series and got 711w @ 60v for a short time, then voltage dropped to 30v. Imm assuming one battery shut off by bms.

I then charged them both to 41v and only got 400w @ 80v on solar input. Approx 5a.

is a bms limiting the current? any ideas why? I haven’t set up my solar yet.

View attachment 42998
I thought the car charge was 30V max?
Do you have it set on PV charge?
 
If the AC200 battery is nearing full charge, it can only accept so much current.
I had that same thought. I discharged it to 88%. I actually get more charging (watts) using (1) 36V battery then with 2. Im thinking the Daly 36V 30 A BMS isnt liking it somehow.
 
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