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Old 04-11-2020, 07:48 AM   #17 (permalink)
Hersbird
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Quote:
Originally Posted by vskid3 View Post
Do you have a charger that can stop at 80%? That's where the big gains are, not going all the way to 0% or 100%.

The flat discharge curve for lithium makes it difficult to estimate the charge based on voltage. I used a watt meter like this for my ebike to keep track of how much power I used. http://amazon.com/GT-Power-Analyzer-...dp/B00C1BZSYO/
I had a watt meter just like that for my other bike and it died. The other bike was a 52 volt so maybe it was too much at 100% charge? Maybe it was just a bad unit as it only lasted a week.

I was wondering how to figure out how to stop charging at 80% and then just charge every day after riding. The supplied charger gives no clue. Maybe I'll just get a time down. Maybe I'll just not worry so much and be happy with whatever. Batteries are getting less expensive still.

Looks like a 12 hr charge goes to 53.7 volts on a 48v battery so 95% according to the chart I found? At least that's not 100%

Last edited by Hersbird; 04-11-2020 at 08:00 AM..
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