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Author Topic: tskb-- rechargeable 9-volt batteries  (Read 1759 times)

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Offline daze

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tskb-- rechargeable 9-volt batteries
« on: March 15, 2009, 01:49:08 PM »
...I'm looking into getting a rechargeable 9v gizmo for my guitar pedals (and possibly for use in my st-9100 and sp-spsb-1, although I'm not sure if rechargeables really work well in these).  If anyone has any advice of what is good and what to stay away from, I'd be very appreciative.  Thanks!

Offline sunjan

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Re: tskb-- rechargeable 9-volt batteries
« Reply #1 on: March 15, 2009, 04:35:45 PM »
...I'm looking into getting a rechargeable 9v gizmo for my guitar pedals (and possibly for use in my st-9100 and sp-spsb-1, although I'm not sure if rechargeables really work well in these).  If anyone has any advice of what is good and what to stay away from, I'd be very appreciative.  Thanks!

Rechargables do work in the CA9100, but you have to make sure you buy 9.6V cells. (those labeled 9V only put out 8.4V).
Maha/Powerex is the gold standard that has been tested by several members here.
There are a handful of other brands that might work. I recently posted a market overview here:
http://taperssection.com/index.php/topic,115620.0.html
If you try any of the other brands, let us know the results!
Mics: A-51s LE, CK 930, Line Audo CM3, AT853Rx (hc,c,sc),  ECM 121, ECM 909A
Pres: Tinybox, CA-9100, UA5 wmod
Recorders: M10, H116 (CF mod), H340, NJB3
Gearbag: High Sierra Corkscrew
MD transfers: MZ-RH1. Tape transfers: Nak DR-1
Photo rig: Nikon D70, 18-70mm/3.5-4.5, SB-800

Offline daze

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Re: tskb-- rechargeable 9-volt batteries
« Reply #2 on: March 15, 2009, 05:00:25 PM »
Thanks.  This charger looks like it might be promising:

http://www.zbattery.com/9V-Charger-4-Independent-Channels?leadsource=5

Offline sunjan

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Re: tskb-- rechargeable 9-volt batteries
« Reply #3 on: March 16, 2009, 10:29:09 AM »
Yup, that's the Maha/Powerex one...

One thing worth remembering: the battery brand and charger brand should always match when dealing with 9.6V cells.
So if you buy the Powerex charger, you will need to stick to the same brand of batteries for best results.
Mics: A-51s LE, CK 930, Line Audo CM3, AT853Rx (hc,c,sc),  ECM 121, ECM 909A
Pres: Tinybox, CA-9100, UA5 wmod
Recorders: M10, H116 (CF mod), H340, NJB3
Gearbag: High Sierra Corkscrew
MD transfers: MZ-RH1. Tape transfers: Nak DR-1
Photo rig: Nikon D70, 18-70mm/3.5-4.5, SB-800

Offline Red Boink

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Re: tskb-- rechargeable 9-volt batteries
« Reply #4 on: April 02, 2009, 06:35:29 PM »
check out the i-power 9volt lithium rechargables.  I've been using them in radio mic setups heavily for almost a year without any problems, they're always there with steady discharge rates and rated capacity. 

http://thomasdistributing.com/shop/ipower-9-volt-500mah-lithium-polymer-rechargeable-batteriesbr9v-lithium-rechargeablebrone-9v-rechargeable-battery-p-548.html?SP_id=&osCsid=9citv7m7hbd1mkaop5i6v85p76

Highly recommended

Offline sunjan

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Re: tskb-- rechargeable 9-volt batteries
« Reply #5 on: April 03, 2009, 11:09:36 AM »
check out the i-power 9volt lithium rechargables.  I've been using them in radio mic setups heavily for almost a year without any problems, they're always there with steady discharge rates and rated capacity. 

http://thomasdistributing.com/shop/ipower-9-volt-500mah-lithium-polymer-rechargeable-batteriesbr9v-lithium-rechargeablebrone-9v-rechargeable-battery-p-548.html?SP_id=&osCsid=9citv7m7hbd1mkaop5i6v85p76

Ooops, just read the fine print on these: "Please Note: The nominal voltage of this battery is 8.4V."
I don't know about guitar pedals, but Chris Church advises against these for mic preamps. Maybe the pedals are less critical to run on low voltage?
Mics: A-51s LE, CK 930, Line Audo CM3, AT853Rx (hc,c,sc),  ECM 121, ECM 909A
Pres: Tinybox, CA-9100, UA5 wmod
Recorders: M10, H116 (CF mod), H340, NJB3
Gearbag: High Sierra Corkscrew
MD transfers: MZ-RH1. Tape transfers: Nak DR-1
Photo rig: Nikon D70, 18-70mm/3.5-4.5, SB-800

Offline Gutbucket

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Re: tskb-- rechargeable 9-volt batteries
« Reply #6 on: April 03, 2009, 11:49:22 AM »
I've used the Maha/Powerex 9.6v cells in both Church & DPA preamps for the past year and am very happy with them.  I specifically chose them for the slightly higher voltage.  They measure around 10.5v freshly charged and around 9.6v when I pop them back in their special charger.
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