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OTIS S-71 BATTERIES
BATTERY SPECIFICATIONS
My S-71 uses six 6-volt Trojan batteries, model T-105, rated at 185 ampere- hours for 5
hours. Each measures 7 1/8” wide by 10 3/8” long by 10 7/8” high. The two 5/16 -18
threaded post connections are at diagonal corners. Other high-quality deep-cycle Golf
Cart batteries may be used.
Each T-105 weighs 62 pounds. Use a battery- lifting strap rated for this weight when
removing or installing batteries.
TROJAN BATTERY DATE CODES
The Trojan date code is a letter-number combination stamped on the negative post. The
code is MY, with the Month being A = January, B = February, etc. The Year is a single
digit such that 3 = 2003, 4 = 2004, etc. Thus A3 indicates January 2003.
WARNING: WHILE 6 OR 36 VOLTS WILL NOT PRESENT A SHOCK
HAZARD, THE HIGH AMPERAGE AVAILABLE FROM THESE
BATTERIES CAN WELD JEWELRY OR TOOLS THAT MAY
ACCIDENTALLY SHORT ONE OR MORE OF THESE BATTERIES.
TO ENSURE YOUR SAFETY, REMOVE RINGS AND WATCHES
FROM HANDS AND ARMS, AND WRAP ALL TOOL HANDLES
WITH TAPE.
WARNING: THESE BATTERIES CONTAIN SULFURIC ACID. IF
THIS ACID CONTACTS SKIN, EYES, OR OTHER BODY PARTS
IMMEDIATELY
FLUSH WITH LOTS OF WATER.
BATTERY MAINTENANCE
Periodically check the fluid level in the batteries- in all 18 cells. Hot weather and the
battery charging process will normally cause the batteries to lose water. Remove the caps
and verify that the fluid level is above the lead plates. If it is not, slowly add DISTILLED
water until it is over the plates. DO NOT USE TAP WATER, as the impurities in it will
shorten the life of the batteries.
Periodically check and, if any corrosion is observed, clean the battery terminals.
Corrosion may be neutralized using a solution of baking soda dissolved in tap water. Pour
the solution over the corrosion and use an old toothbrush to brush away the corrosion.
