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Old 05-14-2011, 08:10 PM   #1 (permalink)
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Charging/Electrical Question

On my 98 Foreman ES I have been trying to see why my battery drains. I have run the electrical test's specified in my Clymers Manual and from what I can see the the mA's are with in range.

I did the charging test and it is suppose to be at 14.7 when throttled up. However when throlttled up it only reads 14.3. Does anybody know if this is still within parameters?

I cannot firgure out why my battery is toast after 2-3 weeks when connected and i believe also when disconnected.

Any help or advice would be great.

Thanks
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Old 05-14-2011, 08:20 PM   #2 (permalink)
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If it's draining even while disconnected, you probably have a bad battery.

With the headlights on high beam, you're supposed to have 14.7-15.5 VDC at the battery at 5,000 RPM. Even if it's only charging at 14.3 volts, I doubt if that's causing the battery to drain while it's sitting. You probably either have a short or a bad battery. I would begin by fully charging the battery and load testing it. My guess is that you have a bad battery.
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Old 05-14-2011, 09:51 PM   #3 (permalink)
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^^^^^^^^^^yep.
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Old 05-14-2011, 09:52 PM   #4 (permalink)
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Thank you for the info Would there be a quality recomended battery?

Maybe it was my poor choice in battery purchase location. I will not say where, but not the best of places to get a battery for my bike.
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Old 05-14-2011, 09:56 PM   #5 (permalink)
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Quote:
Originally Posted by 98 Foreman ES View Post
On my 98 Foreman ES I have been trying to see why my battery drains. I have run the electrical test's specified in my Clymers Manual and from what I can see the the mA's are with in range.

I did the charging test and it is suppose to be at 14.7 when throttled up. However when throlttled up it only reads 14.3. Does anybody know if this is still within parameters?

I cannot firgure out why my battery is toast after 2-3 weeks when connected and i believe also when disconnected.

Any help or advice would be great.

Thanks
14.3v is acceptable,,more than likely your battery has a dead cell,or is dying...YUASA is the OEMs choice,and a great battery,but any agm sealed type gel battery should work great for you(skip wal mart as they offer zero warranty on atv batteries) Feebay has great deals on atv style/sized batteries if you can wait a few days for it to arrive...Also,if you have a winch,or extra lights,get the biggest amp battery that will physically fit your bike,14 series,6ahour(the bigger this number the stronger,and longer lasting while using the battery),or better...
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Old 05-14-2011, 10:18 PM   #6 (permalink)
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Even after changing to a new battery, what about the thought of a "battery tender"?
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Old 05-14-2011, 10:26 PM   #7 (permalink)
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Even after changing to a new battery, what about the thought of a "battery tender"?
Using a battery tender wouldn't be a bad idea at all.
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Old 05-14-2011, 10:34 PM   #8 (permalink)
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Even after changing to a new battery, what about the thought of a "battery tender"?
Agreed, I have one Tender but i have the connectors installed on the ATV, Mower, and the generator, I don't use it on the Rancher because i ride it to much but i rotate it between the generator and mower monthly. Ive had the same battery in the generator since new 6 years ago and it still works great.
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Old 05-14-2011, 10:49 PM   #9 (permalink)
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EXCELLENT! Thanks everybody, I really do appreciate all the help. Time to go replace a battery and look into a battery tender.

Thanks again for the help.
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Old 05-15-2011, 12:25 AM   #10 (permalink)
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EXCELLENT! Thanks everybody, I really do appreciate all the help. Time to go replace a battery and look into a battery tender.

Thanks again for the help.
Make certain it is the Battery Tender brand named tender as it is the best(built in smart charge) I have found yet,plus hit Radio Shack and pick up as many of the male ends as you have batteries so you can install them all at once,and switch the Tender around on the weekend time that you're not out riding.These things will seriously increase the life of any good quality battery...http://www.motorcycle-superstore.com...r-Charger.aspx
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