- Joined Nov 15, 2020
Hello everyone I'm new here but here goes. I recently purchased 4 apc 1300s. I want to put lithium ion batteries in then but I need to either charge them separately. And thus deactivate the ups charger or boost it to 29.4v can anyone help me with this Please. I have limited knowledge, but the boards are labeled pretty well. I can not find any schematics.