The trickle current for a fully charged battery floating at the recommended charge voltage will typically hover around the 0.001C rate (7mA for a 7AH battery, for example.) The float charger is basically a constant voltage power supply. As with cycle chargers, care must be taken not to ...
40AH wasn’t good enough for me, so I switched the lead acid batteries to 18650 Lithium batteries using battery cells salvaged from the old laptop batteries. Using brand new 18650 cells were fine. But it was expensive. I purchased a few of the cheap 18650 cells from Amazon, eBay, Aliexpr...
it's about 4y old) which is way too low for 7Ah battery and second one got 4424mAh which is kinda fine. I opened them up, instead of distilled water i used sulfuric acid that i got from old lead acid battery. I used pulse charger that i made and first ...