Hi. I'm an EE specializing in Lithium batteries. I know not all Lead-Acid chargers are compatable with all Lithium batteries, and it matters. In this case the voltage for FLA matches up pretty closely with the Lithiums, and equalization is not necessary, nor will it work (the batts will detect a higher voltage and shut off). It will charge them more slowly than an equivalent Lead-Acid in the last 20% of the charge, but that's okay - they just need an overnight charge.

It's quite possible there's something wrong with this charger however, and I'm not familiar with it - slightly intimidated, actually - so I thought I'd see what some common issues are, so I know where to look. Thanks.