Posted April 10, 20231 yr Im trying to help a friend with his setup and the battery is charging very slowly. Ive set the charge current to 20A as that is the standard charge current however on the battery name plate, it states that charge current can go up to =< 100A. Would charging at a higher current diminish the life of the battery or create an unsafe condition? Its an off grid setup with 1kWp of panels. The battery has built in BMS with charge protection etc. Any advice would be appreciated!
April 10, 20231 yr 1 hour ago, Stu.raw said: Im trying to help a friend with his setup and the battery is charging very slowly. Ive set the charge current to 20A as that is the standard charge current however on the battery name plate, it states that charge current can go up to =< 100A. Would charging at a higher current diminish the life of the battery or create an unsafe condition? Its an off grid setup with 1kWp of panels. The battery has built in BMS with charge protection etc. Any advice would be appreciated! The specs clearly state a 20A charge current for this 200Ah battery. May be it can take short bursts of below 100A but I will not risk it. The label could be wrong. In the specs they also refer to 10A charging current for the smaller 100Ah battery. 🤔 Edited April 10, 20231 yr by Scorp007
April 12, 20231 yr On 2023/04/10 at 5:00 PM, Stu.raw said: Would charging at a higher current diminish the life of the battery or create an unsafe condition? This battery seems to be an 8S LFP battery. If so, 100 A is C/2, which is pretty standard for LFP storage batteries. I would think that higher charge currents would be fine.
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