BUG - need a fix for open loop charge curve for Lithium batteries

dtbaker61 · 2025-11-27T00:42:40Z

It is currently not possible to obtain a "Lithium-friendly" CC-CV charge curve when running with open loop (no comms) between the 12000xp and Lithium batteries. User *should* be able to program and manage charge curve by setting: Type= Li-OpenLoopVend-of-charge= 56.2(default), and Vfloat=54.0(default) The result should be a CC-CV curve hitting the target Veoc hit once a day, held for 0 time, and settling to Vfloat. Veoc flag can be reset to detect "night" as any time that PV voltage < 50vDC I would like to be informed when this bug is addressed, and suggest that it is propagated to to all inverter firmware. I'd love to see it start with the 12000xp and 6000xp since I have several clients installed off grid with these, and I'd like to see proper charging, safety, and maximize battery cycle life.

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12000XP

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dtbaker61

(@dtbaker61)

Posts: 153

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@eg4eric

tech support DID push the requested firmware (080a), but this fix should be standard release by now!

Posted : August 31, 2026 8:30 pm

Solar_Pergola

(@solar_pergola)

Posts: 18

Eminent Member

Bump

Posted : September 20, 2026 7:50 pm

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BUG - need a fix for open loop charge curve for Lithium batteries

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