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I found the front batteries, both had a bad
cell. I used a hydrometer to check all the cells after cutting the lawn
and before recharging. Under a heavy current they would start to reverse
charge. They can do that! That will suddenly lower the voltage and current
availlable from the battery pack. After I would stop, the lower current
flow would allow them to return to normal and the voltage and current would come
back to normal. I found two used batteries at a local battery shop and
that solved the problem.
Thanks for all the helpfull sugestions
Ralph Vogan
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