After upgrading MultiPlus from ver 1xx to 552, the blinking red light on its MultiControl comes on (low battery warning). SOC of my two battery banks is better than before the upgrade. Indicated voltage on the BMV712 is 13.1, and the Multi sees it as the same (when I check through the CerboGX inte…

The restart voltage is a bit high in my opinion, also the pre-alarm. Your problem was the high restart voltage. After a reset of the MultiPlus (switching off-on or a FW update) the battery voltage needs to be over the restart voltage. I would set the pre-alarm 0.5V over the shut-down and the rest…

yes, we did. They were: DC input low shut-down 11.6V, DC input low restart 13.2V, DC input low pre-alarm: 13.2V. Shut-down on SOC was checked and the SOC low shut-down was set at 10%. From these settings, the DC input low pre-alarm and DC input low restart (13.2V) were observed in practice, i.e. …

Low battery warning after MultiPlus firmware upgrade to ver. 552

DIY

M_Lange (Matthias Lange - DE) 3 November 2024 12:12 2

Did you check all settings of the MultiPlus with VE.config?

Low battery alarm and no solar power yield

Topic		Replies	Views
Multiplus and lithium battery’s low voltage DIY diy , gx_device , cerbo_gx	10	551	27 June 2025
Low voltage warning on Multiplus2 (red led blinking) - no reasons found Q&A and troubleshooting diy , vrm , multiplus-ii , cerbo_gx	0	75	23 October 2025
Low battery alarm and no solar power yield Q&A and troubleshooting beginner , mppt , multiplus-ii , cerbo_gx	4	200	29 September 2025
Inquiry About Low Battery Voltage Issue with MultiPlus 24/3000/70 DIY beginner , multiplus , offgrid	14	1135	24 January 2025
Multiplus switches off - battery voltage too low DIY offgrid , multiplus-ii	7	161	29 August 2025

Low battery warning after MultiPlus firmware upgrade to ver. 552

Related topics