How to maximize the overall lifespan of an SLA battery

Thread Starter

uraniumhexoflorite

Joined Oct 23, 2016
204
My friend and I built 2 portable batteries for powering stuff such as computers, mobile devices, etc. We haven't accumulated enough 18650s yet to use lithium batteries, so we used SLA batteries instead. From what I read on battery university, it sounds like it's best to keep the SLA batteries at 100% charge to maximize their life span, but I just wanted to make sure that this is correct and that I didn't misread or misinterpret something.
 

crutschow

Joined Mar 14, 2008
24,709
Yes, SLA's (or any lead-acid battery) should be maintained at full charge, otherwise they may sulfate and lose capacity.
This can best be done with an intelligent charger that charges at a higher rate, and then drops to the proper trickle charge rate, to maintain the battery fully charged.
 
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Thread Starter

uraniumhexoflorite

Joined Oct 23, 2016
204
Thanks for confirming that. My battery has an intelligent charger, but my friend's doesn't so I will tell him that it would be good to get one. Thanks for the help!
 
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