RV Voltages too high while charging

MEXICOWANDERER wrote:
These so called "battery experts" are crazier than a s---house rat. From one extreme to the other they veer and wander. Lost little children trying to find their way. Man this is even worse when I had the company. I guess no one wants to represent electro-chemical reality anymore. "Oh! Charge at no higher than 14.4 volts! No wait a minute! 15.3! No! Nothing is correct! Where did I put the cyanide supplement pills?"

Ever heard the term "Fart In A Whirlwind"

It's when you allow ignorant people to do your thinking for you.

There is enough VALID informatiin on this site to educate a novice more thoroughly than what 80% battery peddlers will EVER know. If you choose to ignore valid information please weep in silence. The whirring funnel cloud noise of utter confusion is distracting.

Hey my car is not starting up fast every morning. Quick! Call the salesman - he'll know what to fix. Only MANUFACTURERS can properly represent proper battery care. Not Interstate, sears, Kragens, Wal-Mart or Dairy Queen. Interstate is a battery merchandiser. They are experts in warehousing, distribution and stocking batteries from whatever manufacturer they can strike a deal with. Imdividual distributors are FRANCHISES just like McDonalds and the corner Chevron station. I've met a few distributors who knew their product enough to offer decent service. Then I've met others who were dumber than a freshly dried mud pie. They managed their business well and rotated stock and kept good books but their knowledge of batteries was pathetic. Same issue for Sears Roebuck. A guy comes swaggering out with an impedence meter and proceeds to heap enough B.S. onto a question to properly fertilize the eastern half of the county park.

Some of you need to get whacked over the head with a baseball bat to get your attention?

If you do not trust the -correct- information on this forum TELEPHONE THE BATTERY MANUFACTURER. They have people called application engineers whom are a lot more savvy than a battery peddler.

Yes 15.3 volts absorbsion is too high except for Fargo North Dakota in January. 14.8 volts to 15.3 volts is half a volt too high. Even .2 volts greater than Top Charging limit.

Sometimes I think my time spent here is reaching too few people. Grumble Snivel

You can lead a horse to water, but you can't make it drink. Been doing 14.8V on mine for a year now, and 15.0 to 15.1 every couple of days or so, and to 16.0V for an hour or two when I get home right before it goes into the storage yard disconnected.

Not worried when my T-1275 dies, pretty sure I am treating it right, and storing it right. It's a tough old bird. Best improvement I ever did was matching the solar panels watts output to the amperage capacity of the battery, so that the solar charging system is balanced to the battery. Next best thing I did was get that MegaWatt 30 amp Power supply unit, and learned how to use both of them manually.

So forgive me for being a slow learner. These settings work for my current battery, and my current battery only. YMMV, talk to the manufacturer of your battery. Heavy lead plates with high% antimony from a sweeper may be different from what you are running. My battery likes low amps, slow slow charging most of the day, with an added voltage bump tweak near the end of the day to top things off. All I know is that the specific gravity readings don't lie. It works, for me.