I think I may have damaged
the battery on our first ATV back in the early Summer when I
trickled charged it all night with this ancient charger.
A little research will show
that 4 amps is a lot for a small battery, and you need to disconnect it
after so many hours before it starts to overcharge.
The new AutoCraft charger
shuts off automatically and then shifts into a maintanance mode that
will slowly send a charge but only when it needs it. No more guess
work on when to shut off the old charger.
Hi Mark,
Yes, you are doubtless right.
Charging for a long time period with a constant current charger will boil away the fluid (water) and the battery will eventually fail, but the battery will become much less 'potent' long before that. It simply runs out of fluid.
You can refill the cells with distilled water and often fix the battery unless things have gone too far. Refilling with acid is typically not needed as it's usually just the water that is lost.
Note that 'gel' type batteries work the same way but are harder to measure with a hydrometer.
That said, I just buy a new battery at this point in my life.
John
p.s.- I continues to amaze me that someone doesn't offer a high capacity switching power supply as a battery eliminator. Just plug it in and start the engine. Electronics has gotten to the point where such a device this would be pretty easy to design and build, but so far as I know it is not for sale??