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I have a question about rechargeable batteries
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I have a question about rechargeable batteries - September 12, 2011, 09:35 AM

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September 12, 2011, 09:42 AM

What are the battery chemistries?

Different types of batteries have different voltage vs charge curves. A different chemistry may cause the charger to shut off before the battery is fully charged or overcharge it. What happens in an overcharge situation depends on the type of battery.

Solution: Buy a charger that works with the type of cells you're using.


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September 12, 2011, 09:48 AM

mAH = milli amp hours.
The larger the number, the more charge your batteries can store.

Rechargers typically are dual stage; they'll rapid charge up to 85% of the battery's capacity in the first 20 minutes then ramp down and slowly trickle charge the remaining 15% over an hour or two.
Are you leaving them on the charger for the entire 2 hours?

Second, have you conditioned the new batteries? To do this, before using the batteries you charge them up to 100% holding capacity then use them until they are absolutely flat.

Then repeat the full charge process and run them down once again. After the 3rd cycle, feel free to use them as you see fit. Conditioning the batteries will significantly improve their overall life.



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September 12, 2011, 09:56 AM

Quote:
Originally Posted by mangle View Post
What are the battery chemistries?
This too.
Are they Nickel Metal Hydride (NiMH), Nickel Cadmium (NiCad), Nickel ZInc (NiZN), Lithium Ion (Li-Ion)?

To Mangel's point, they all will need charging systems spec'd to the the battery's requirements.



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September 12, 2011, 10:05 AM

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September 12, 2011, 11:06 AM

Circuit City is still on-line and they are the parent company of HH Greg
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September 12, 2011, 11:28 AM

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Circuit City is still on-line and they are the parent company of HH Greg
Where did you hear that?

Circuit City the company is toast.

CC online was bought by Tiger Direct if I remember and only exists as an brand name.

HH Gregg was big down in the MidWest. They snatched up the old CC brick and motar locations so they could expand into the Mid-Atl and North East.



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October 12, 2011, 09:28 AM



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