I have seen some lead acid manufacturers state minimum charge current for their batteries, one manufacturer even claiming minimum 0.2C as minimum, but the manual for Victron Super Cycle only state that maximum should be 0.2C. Is there a recommended minimum? If so, how much?
Hi @Matias B
There’s no minimum charge current for a lead-acid battery. A slow charge will simply increase recharge time. If you adhere to the 0.2C max recommendations and use temp compensated charging you will be ok under normal operations. It will just add time to recharge with a smaller charger which may be inconvenient.
With that in mind, I would not recommend using a smaller than 0.1C charger, as many chargers have a max-bulk time limit and if to small the charger may time-out and stop the charge process. All in all, between 0.1C & 0.2C should do the trick.
