Only 50 starts a year, and 6 months unattended is considered NEGLECT.
Batteries perform best when used frequently and kept fully charged.
That's why a car battery lasts so long. It never goes more than 24
hours without being charged back up. Your lawn mower sits 6 months.
If you want longer life, invest in a Deltran Battery Tender and keep
the mower plugged in during the 6 months you don't use it.
I have to wonder what car battery is good for more than 4 years? After
that you're living on borrowed time. Rather than counting the number of
engine starts, he has to look at the length of service. I'd say he got
what it's reasonable to expect from his battery.
I recently replaced the original battery on my John Deere lawn tractor
after 4 years of service. I basically used it about once a week four
months or so out of the year. I had a cheap Harbor Freight battery
tender on it whenever I parked it in the shed. The old battery still
worked but you could tell it labored. When I installed the new battery:
WOW! It started better than it did when the lawn tractor was new.
Three months later I moved and sold the lawn tractor because my new yard
is easier to cut with a regular mower.
On Wed, 7 Apr 2010 19:48:44 +0000 (UTC), Jules Richardson
1996 year Toyota is on the second car battery (Mojave desert). 14
!994 Ford truck is on the it's third (?) in 16 years. The desert heat
is tough on batteries ... average may be 5 - 6 years. I think a lot
has to do with the starter, connections, etc. A starter that is
"going bad" will really kill the battery quicker. IME.
John Deere, 16 horse Kohler, bought in 2000, just replaced the orig
battery today after it wouldn't hold a charge from a 6 amp charger
overnight. Prior 9 years no problems. Sits in unheated garage from mid
Oct. until around this date.
I just replaced the original battery in my 2001 Ranger. My wife's battery was
replaced in 2004, when we bought the car. FOur years isn't all that much to
ask from a battery unless, perhaps, you live in Phoenix. Heat kills 'em.
Often,it's just that the electrolyte level has dropped below the plates;
many so-called "maintenance-free" car batteries have removeable access caps
and you can add distilled water to keep the level covering the plates.
(they aren't "sealed: lead-acid batteries....they still have a vent for
I suspect that would go a long ways towards a longer car battery life,if
one checked the level every 6 months or so,and topped the cells off if
The next most-common failure mode(after heat) is vibration;the paste falls
out of the grids and collects in a pile at the bottom of the cell,and
eventually shorts the cell.
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