Outdoorsman
Well-known member
Not mine but quoted from my other favorite website...
"I have been reading over alot of the recent posts in regards to "battery care". If this matters to anyone, I just so happen to be a battery sales representative for the leading replacement battery co. in North America. I will not discuss the brand in this posting, but will offer some friendly advice to help with some questions that I have read. As far as battery charging goes, over charging any battery will void most manufacturers warranties. Most "automatic" battery chargers on the market are not truly automatic. They tend to work against the internal resistance in the battery being charged. Therefore always are putting a small Ma rate to a (fully charged) battery, that isn't asking for it. This will in time, boil out the electrolyte and cause premature failure. I would suggest in purchasing a "smart charger" that actually shuts off when charged, then maintains as needed. CTEK makes a great unit that comes in several duties, depending on your needs. Keep in mind also, a fully charged battery stores at 12.66 volts as to 11.90 volts being 100% discharged. The difference being just a little over .7 volts from one extreme to the other. Most owners are not aware of this fact. Also a battery maintained at 12.66v will not freeze until -76 deg. F. A battery stored at 12.1 v could freeze at -10 deg. F. Bottom line on this subject : keep water levels up; invest in a descent charger; charge monthly during storage."
"I have been reading over alot of the recent posts in regards to "battery care". If this matters to anyone, I just so happen to be a battery sales representative for the leading replacement battery co. in North America. I will not discuss the brand in this posting, but will offer some friendly advice to help with some questions that I have read. As far as battery charging goes, over charging any battery will void most manufacturers warranties. Most "automatic" battery chargers on the market are not truly automatic. They tend to work against the internal resistance in the battery being charged. Therefore always are putting a small Ma rate to a (fully charged) battery, that isn't asking for it. This will in time, boil out the electrolyte and cause premature failure. I would suggest in purchasing a "smart charger" that actually shuts off when charged, then maintains as needed. CTEK makes a great unit that comes in several duties, depending on your needs. Keep in mind also, a fully charged battery stores at 12.66 volts as to 11.90 volts being 100% discharged. The difference being just a little over .7 volts from one extreme to the other. Most owners are not aware of this fact. Also a battery maintained at 12.66v will not freeze until -76 deg. F. A battery stored at 12.1 v could freeze at -10 deg. F. Bottom line on this subject : keep water levels up; invest in a descent charger; charge monthly during storage."