Deep Cycle Battery???
When I recently purchased my TT that included a NAPA Battery - Marine Starting - Universal BCI #24M Battery PART # BAT 8304 https://www.napaonline.com/en/p/NBE8304 I was told it was a deep cycle...
Forum Discussion
full_mosey wrote:
Does anyone know why temp comp is important enough to be printed on the label?
AGM batteries are "sealed" so there's no way to replace fluid should it be depleted by overcharging. If it is overcharged, as can easily be the case if temp compensated charging is not used, fluid will vaporize and vent out the one way vents that are provided to prevent the battery from bulging and completely self destructing ... problem is, because the battery is "sealed" there's no way to replace that fluid as there is with a conventional flooded battery and it will prematurely sulfate. Likewise, if the battery is undercharged it will also prematurely sulfate, shortening it's expected lifespan significantly. Temperature compensated charging is the solution, labeling the battery to this effect is to remind owners this is an issue not to be ignored. Each battery manufacturer has their own specific recommendations, such as this East Penn AGM Technical Manual, which would apply to that Duracell AGM being discussed as in reality it's an East Penn / Deka AGM.
