Epsom Salt

[AusCan]

There are three common problems with lead acid batteries.
1. Shorted cell(s)
2. Sulphated plates
3. Stratified acid

No.1 means the battery is toast.

No.2 & No.3 may be improved with high rate pulse charging. (I don't know about epsom salts)

Getting tossed around in rough seas may help problems 2 & 3 as well, but it also sometimes causes problem 1.

 

[sunchaser]

Greetings,
One of the two batteries on the small boat shows a very low (dead?) cell when tested with a hydrometer after a charge. Any comments? Thanks.

Rather than have a battery fire try Sams club or Costco.