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Unread 09-13-2018, 09:00 AM   #21
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Default Re: Lithium Pack Charging Question

I need some help trying to calculate charge time. I purchased a 1.4a lithium compatible 36v charger on Amazon. My pack was listed at 2300wh. Can someone guess how long it will take to bring the pack up from 33v to 35v then how long it will take to bring the pack up from 35v to 38v using my 4a charger? The pack is on my cart 90 miles away and I can't stay for days for it to charge.

Edited: I found a conversion program that converted 2300wh to 64ah. So if my battery is 50% state of charge will it 32ah divided by the 1.4a rating of the chart = about 23 hours. A I on the right track here?

Does anyone know if there is a state of charge chart or a lithium battery?
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Unread 09-30-2018, 10:40 AM   #22
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Default Re: Lithium Pack Charging Question

Update: I bought this charger from Amazon. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 36v 10s Lithium compatible charger with a termination voltage of 42v and I put an Anderson SB50 connector on it to match my battery pack. When I got to the cart voltage was at 28.8v. I got the cart to where I charge it and plugged in the charger and it showed charging and voltage climbing on the DVM. A friend periodically checked on it and hit a termination voltage of 41.7v and shut off.
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