Originally posted by mls6722
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Im lost without the PW thread!!!!
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This was on the review -
This Battery Is Manufactured By JOHNSON CONTROLS
Chatted with a battery engineer at Johnson Controls yesterday. He said that "Johnson Controls is very pleased the Wal-Mart group 29 RV battery is rated very highly by the leading consumer product review company"
The engineer also said "Batteries sold by us to different vendors are likely to have different internal construction". This implies a Johnson Control battery sold to Wal-Mart may have different internals than a Johnson Controls battery sold to COSTCO or Interstate battery. Read the foregoing again: It reads MAY and it reads DIFFERENT. It does not read BETTER or WORSE.
My personal advice as an old and cranky, retired, lead acid battery design engineer, is to weigh every well represented Johnson Controls RV battery and choose the heaviest. The circular stick on tag on the battery case indicates when the battery was manufactured. In my case, I dug through a pile of groups 29's to find a battery manufactured the month before I purchased it.
I do NOT discharge an RV battery to less than 12.15 volts
I do NOT allow a discharged battery to sit for longer than a week before it is FULLY recharged.
A near fully recharged battery will have bubbles rising in the cell electrolyte. If you cannot see any bubbling THE BATTERY IS NOT, REPEAT NOT, properly recharged.
A majority of SMART battery chargers are IDIOTS. They can not fully recharge a battery due to sloppy design.
Use the bubbling guide mentioned above. Your brain is a billion times smarter then a 29 cent integrated circuit
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