question

sunnycoastgreg avatar image
sunnycoastgreg asked

lynx smart battery/BMS not bulk charging after sw update

after recent firmware update (smart battery and lynx smart bms)

the quattro (5000/24V) charging /DVCC goes almost straight away into “absorption” mode.

Batteries at ~80% SoC

cells all within 10mV

battery temperatures ok.

AC connected to quattro,

goes into bulk mode .. but for only ~60 seconds (Current >120A)

then falls back into “absorption “ (but 27V ) with current <100A and falling …..

this behaviour has started immediately after recent firmware update on BMS and smart batteries…

Input current is unrestricted, and DVCC set for “no current limit”

have also checked double quattro settings (via ve.bus /mk3 USB interface and Ve.connect) (its setup for 32A AC mains input and 200A Dc charging)


i cant find any method or way to get it to go into bulk mode?

BMS
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Dani Pennington avatar image Dani Pennington commented ·
What did you change that 70% setting to? Also how has it been working for you?
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sunnycoastgreg avatar image
sunnycoastgreg answered ·

early fault finding suggests that the “SoC threshold” in new firmware and/or after update,

defaults to 70% …..

after changing this to a higher figure, unit appears to have started a full bulk charge cycle

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