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Battery Shelf life

779 views 5 replies 5 participants last post by  N4HHE 
#1 ·
Hi all, quick question,. I have a battery that I bought for my dearly departed 900f. It has been sitting on a shelf for years but I never added the acid. Is this thing junk? Thanks in advance.
 
#3 ·
Nothing to lose... I don't see why it wouldn't work at least to a very high percentage of it's capacity. Add the acid, slow charge at least overnight... at whatever rate they recommend, usually 1.2-2 amps..
 
#5 ·
Should be like new ! But like Ray suggested I always put a new battery on one of my battery tenders to let it charge to full slowly at least overnight, seems to help with the life. I also tend to keep things on a battery tender when not being used, definitely gives better battery life.
 
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#6 ·
The reason they ship batteries without acid (“unactivated”) is specifically for maximum shelf life.

As has already been said, slow charge for 6 hours or more before use. Yuasa has a tech note stating a freshly activated battery will start your engine but will last much longer if “broken in” on slow charge rather than immediately hammered by the full force of vehicle charge system.
 
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