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Old February 26th, 2010, 03:09   #1
Shrapnel[Op-For]
 
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battery issue

I'm not sure if its the battery or the charger, but heres my problem.

I have a g&p 12v cranestock battery, brand new.
I have a universal smart charger.

I plug the battery in to charge on 0.8v setting, it charged for about 2 hours, and the light went green. I tested the battery to see how it worked, and half way through a hi-cap mag it dies. So I set it to charge again.. and the light is red while it charges. However, it only stays red for about 15-20 mins and then the light goes back to green to indicate that it is fully charged.. when it is not.

Whats going on?
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Old February 26th, 2010, 03:25   #2
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is it a charger from airsoft parts?
they are not meant for 12V or higher MAH ratings
get a better charger
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Old February 26th, 2010, 03:42   #3
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From my experience, 1 in 4 G&P batteries are duds.
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Old February 26th, 2010, 03:57   #4
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From my experience, 1 in 4 G&P batteries are duds.
so then buy 4 batteries duh!
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Old February 26th, 2010, 04:34   #5
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Yeah again, is your charger meant for 12v batteries?
I'm thinking no.
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Old February 26th, 2010, 05:13   #6
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Your charger cuts at 10v for over voltage protection.

Because it is designed for 9.6v battery packs.

Get a decent charger that can do 10 cells packs and you should get a decent charge.
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Old February 26th, 2010, 05:43   #7
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Smart Universal Charger for NiMH / NiCd Battery pack 7.2V - 12V with charging current Selection

Features and Benefits:
•Best Charger for charging all RC Car, RC air and Airsoft battery packs 7.2V, 8.4V, 9.6V and 12V.
•For 2000mAh pack, charging time is approximately 3 hours. (Charging at 0.9A)
•For 3000mAh pack, charging time is approximately 2 hours. (Charging at 1.8A)
•Universal for for any NiMH /NiCd battery packs 7.2V - 12V (6-10 Cells pack)
•Fast charger with current switch to select either, 0.9A and 1.8A. Deliver full charge within 1 - 3 hours.
•Charging Current 0.9A for battery packs with capacity from 1100mAh -2200mAh.
•Charging Current 1.8A for battery packs with capacity above 2000mAh.
•Smart Charger:with automatic voltage detection.
•Use pulse and negative pulse technology to avoid battery overheating during fast charging, optimized for battery pack's cycle life.
•Red LED will be on during charging.
•Automatically charging ending with negative delta V.
•Worldwide usage with 120-240V AC
•Safety protection fuse for over current, short circuit & reverse polarity protection.
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Old February 26th, 2010, 05:46   #8
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Originally Posted by Jackarutu View Post
Smart Universal Charger for NiMH / NiCd Battery pack 7.2V - 12V with charging current Selection

Features and Benefits:
•Best Charger for charging all RC Car, RC air and Airsoft battery packs 7.2V, 8.4V, 9.6V and 12V.
•For 2000mAh pack, charging time is approximately 3 hours. (Charging at 0.9A)
•For 3000mAh pack, charging time is approximately 2 hours. (Charging at 1.8A)
•Universal for for any NiMH /NiCd battery packs 7.2V - 12V (6-10 Cells pack)
•Fast charger with current switch to select either, 0.9A and 1.8A. Deliver full charge within 1 - 3 hours.
•Charging Current 0.9A for battery packs with capacity from 1100mAh -2200mAh.
•Charging Current 1.8A for battery packs with capacity above 2000mAh.
•Smart Charger:with automatic voltage detection.
•Use pulse and negative pulse technology to avoid battery overheating during fast charging, optimized for battery pack's cycle life.
•Red LED will be on during charging.
•Automatically charging ending with negative delta V.
•Worldwide usage with 120-240V AC
•Safety protection fuse for over current, short circuit & reverse polarity protection.
what brand smart charger? whats the price range? what company?
we're talking about a 20$ one
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Old February 26th, 2010, 10:43   #9
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Originally Posted by R.I.T.Z View Post
what brand smart charger? whats the price range? what company?
we're talking about a 20$ one
this one
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Old February 26th, 2010, 17:07   #10
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Quote:
Originally Posted by Shrapnel[Op-For] View Post
this one
Read on the back what's it's made for and what it can output.
Most chargers aren't made for anything over 8 cells, and you have to get special chargers for 10.8v and 12v.
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Old February 26th, 2010, 20:46   #11
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this can't be the issue as it states on the charger It is designed for batterys 8 to 12v.
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Old February 26th, 2010, 21:04   #12
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well, either your battery or charger is defective.

try a working battery on your charger or try your battery on a friends working charger.

you aren't going to figure out what's wrong until you figure which part is faulty.
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Old February 26th, 2010, 21:09   #13
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Most non-digital chargers are usually crap.
Your battery is really the life of your gun. It and ammo are the only 2 things keeping it going in the field. That being said, do you really want to be charging your battery with a cheap charger? That's like using really crappy ammo, you just don't do it lol
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Old February 27th, 2010, 01:35   #14
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I can confirm you that it is the charger that is the issue.

Even though the seller claims that the charger can do 12, it CAN'T.

I have tested this brand of charger. There is two version (right from the factory). One can do up to 6-7-8 cells and the other does 9-10-11-12 cells.

The sellers claim that it can charge 12V batteries because of the Engrish. The charger will be able to output 12v. That is what is needed to charge a 9.6v pack. The traduction is just crap.

As said, get a real charger. That thing is like saying you have an airsoft gun when you bought a Crossman Stinger.
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Old February 27th, 2010, 01:44   #15
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at "12V" battery isn't 12V when it's fully charged the voltage ratings are taken when they cells are low.. IIRC it's something closer to 14ish V..

Your charger is your problem, no questions about it.

Those things even kill 8.4 batteries.
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