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Author Topic: AA Rechargeables  (Read 1762 times)

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Offline Nick Graham

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AA Rechargeables
« on: January 05, 2006, 02:24:35 PM »
Just wondering what everyone considers to be the best option for rechargeable AAs?

I've been using Energizer 2300 NIMH for awhile, but they seem to be losing charge quicker and quicker every go 'round.

Don't quite a few people use the Powerex brand? Thinking about picking up a couple packs of batteries and a charger, but wanted to gather some other opinions.
Right now nothing...in the past: Schoeps CMC6, AKG 480, AKG 460, AKG 414, MBHO 603a, Neumann KM100, ADK TL>Schoeps MK4, Schoeps MK2, Schoeps MK41, AKG ck61, AKG ck62, AKG ck63, Neumann AK40, Neumann AK50, MBHO ka200>Lunatec V2, Lunatec V3, Apogee Mini-Me, Oade M148, Oade M248, Sound Devices MP2, Sonosax SXM2>Sony (mod)SBM1, Apogee AD500>D7, D8, D100, M1, R1, R4, R09, iRiver HP120, Microtrack

Offline Brian Skalinder

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Re: AA Rechargeables
« Reply #1 on: January 05, 2006, 02:39:15 PM »
Have you tried cycling your batts 2-3 times, i.e. full discharge + full charge?  IME, that helps get some life back from your batts.

What charger are you using?  IME the Maha chargers are excellent, whereas the RS and Engergizer type chargers don't work as well.
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Offline Chuck

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Re: AA Rechargeables
« Reply #2 on: January 05, 2006, 02:40:43 PM »
I accidentally left my 2300mHa PowerSonics hooked up to my PMD 671 too long and I think I damaged them. When I put them into the LaCroose charger, the charger said "null." I put them in parallel with some good ones to give them a slight charge, and the charger accepted them OK. The problem is, they only charge to about 1800 mHa now :(

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Offline F.O.Bean

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Re: AA Rechargeables
« Reply #3 on: January 05, 2006, 02:46:27 PM »
Johnny just sent me some 2500mah Energizer ones, and at the moment, I only have the Energozer CHDC charger, which is nice and compact but im not so sure its a 'smart' charger, so im wondering what others opinions are about this setup as well

like brian said, when you first get NIMH batts, its VERY important to FULLY charge them and then fully discharge them, I do this twice as soon as i get them and then maybe once a year discharge/cycle them again, because as i recall, youre not supposed to discharge NIMH packs TOO often(tho i still do when doing battery runtimes ;) ) remember, theyr unlike NICD batts which need discharged/charged(cycled) EVERY use to get maximum life
« Last Edit: January 05, 2006, 03:04:31 PM by Bean »
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Offline blastroknow

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Re: AA Rechargeables
« Reply #4 on: January 05, 2006, 02:57:23 PM »
The Maha charger with PowerEX 2350s and Energizer 2500s {cheap at Target} have been working consistently great for me.
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Offline Brian Skalinder

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Re: AA Rechargeables
« Reply #5 on: January 05, 2006, 03:01:17 PM »
Johnny just sent me some 32500mah Energizer ones

Those are some MONSTER rechargeable AAs!  Who needs lead for 12v, just pack 10 of those babies together and you're covered for an entire weekend festival.  :P
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Offline Nick Graham

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Re: AA Rechargeables
« Reply #6 on: January 07, 2006, 06:24:36 PM »
Bought these of eBay Thursday, arrived via Fed Ex this morning:

Powerex NiMH 2500 Rechargeable AAs (I bought 12): http://cgi.ebay.com/MAHA-POWEREX-2500-AA-NiMH-Rechargeable-Batteries-NiMH_W0QQitemZ7576393829QQcategoryZ43445QQtcZphotoQQcmdZViewItem

MAHA 8 battery charger:
http://cgi.ebay.com/MAHA-MH-C801D-Battery-Charger-for-AA-AAA-Batteries_W0QQitemZ7576394746QQcategoryZ50511QQtcZphotoQQcmdZViewItem

The charger was kinda pricey, but exteremely nice. It has a "Conditioning Cycle" which will completely charge/discharge/recharge batteries, which should help add some life to my Energizer AAs I was complaining about earlier in this thread.

Bean & Brian, thanks for the info on the charge/discharge immediately process. I've got my D7, D8, and M1 all recording right now (all running line out with backlight on to speed up the process) to discharge the batts. Will probably do it again tomorrow...


Right now nothing...in the past: Schoeps CMC6, AKG 480, AKG 460, AKG 414, MBHO 603a, Neumann KM100, ADK TL>Schoeps MK4, Schoeps MK2, Schoeps MK41, AKG ck61, AKG ck62, AKG ck63, Neumann AK40, Neumann AK50, MBHO ka200>Lunatec V2, Lunatec V3, Apogee Mini-Me, Oade M148, Oade M248, Sound Devices MP2, Sonosax SXM2>Sony (mod)SBM1, Apogee AD500>D7, D8, D100, M1, R1, R4, R09, iRiver HP120, Microtrack

Offline F.O.Bean

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Re: AA Rechargeables
« Reply #7 on: January 07, 2006, 07:39:45 PM »
Bought these of eBay Thursday, arrived via Fed Ex this morning:

Powerex NiMH 2500 Rechargeable AAs (I bought 12): http://cgi.ebay.com/MAHA-POWEREX-2500-AA-NiMH-Rechargeable-Batteries-NiMH_W0QQitemZ7576393829QQcategoryZ43445QQtcZphotoQQcmdZViewItem

MAHA 8 battery charger:
http://cgi.ebay.com/MAHA-MH-C801D-Battery-Charger-for-AA-AAA-Batteries_W0QQitemZ7576394746QQcategoryZ50511QQtcZphotoQQcmdZViewItem

The charger was kinda pricey, but exteremely nice. It has a "Conditioning Cycle" which will completely charge/discharge/recharge batteries, which should help add some life to my Energizer AAs I was complaining about earlier in this thread.

Bean & Brian, thanks for the info on the charge/discharge immediately process. I've got my D7, D8, and M1 all recording right now (all running line out with backlight on to speed up the process) to discharge the batts. Will probably do it again tomorrow...




no problem, im cycling my 2500 ones right now as well, im gonna do two cycles :)

im on the second cycle now!
Schoeps MK 4V & MK 41V ->
Schoeps 250/0 KCY's (x2) ->
Naiant +60v/Low Noise PFA's (x2) ->
DarkTrain Right Angle Stubby XLR's (x3) ->
Sound Devices MixPre-6 & MixPre-3 ->
SanDisk 128gb Extreme Pro & 64gb Ultra Plus SDXC-I

http://www.archive.org/bookmarks/diskobean
http://www.archive.org/bookmarks/Bean420
http://bt.etree.org/mytorrents.php
http://www.mediafire.com/folder/j9eu80jpuaubz/Recordings

 

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