np-e3 nimh question (battery not accepting charge)

[RickWaggoner]

Hi All,

One of my np-e3's for a Canon 1D Mark II is not accepting a charge. I tried several times to fully refresh the battery, but the process just continues for days on end and never works out. Does anyone know if there's a way to fix this? How about what might have caused it? Have others run into this as well?

Thanks,
Rick

[DrewLong]

Well Rick, have you tried a full refresh? If that doesn't work, then it's probably dead.My advice is to go buy one of those Black Diamond 2200mah batteries and switch head caps. Longer lasting and still with the weather sealing.

[PaulKelm]

I'd like to second what Drew said. If it doesn't accept a charge, then it's probably dead. That happens after a while. It can also happen if the battery is stored dead for a long time.

Go to BuyDig.com and get a $20 battery. Use the end cap from your Canon battery to replace the one that comes on the BuyDig battery. It's held on by two small screws. You'll be good to go. It will probably make your other Canon battery seem like a loser when comparing the performance of the two.

[Dennis_Wood]

[ QUOTE ]
Hi All,

One of my np-e3's for a Canon 1D Mark II is not accepting a charge. I tried several times to fully refresh the battery, but the process just continues for days on end and never works out. Does anyone know if there's a way to fix this? How about what might have caused it? Have others run into this as well?

Thanks,
Rick

[/ QUOTE ]

These batteries are nothing more than several "AA" sized NiMH batteries assembled together in a housing. It is quite possible one of the cells has simply gone dead, rendering the pack useless. If doing a full refresh/recharge cycle has no effect then you're most likely looking at a dead battery pack.
I've purchased a couple of the Black Diamond replacement ones from MyDigitalDiscount with good results. While some of the early versions of this battery had problems with the end cap fitting the 1D series bodies correctly they seem to have corrected this problem. The two I have fit correctly.
for $24.99 (2 bucks off if you buy two) its hard to go wrong. They also seem to have a noticably greater life than the OEM Canon NP-E3.
http://www.mydigitaldiscount.com/s.n...it.A/id.449/.f

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