Tx/Rx charger confusion  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Tx/Rx charger confusion
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Tx/Rx charger confusion - 4/29/2008 5:21:33 PM   
bripost73


 

Posts: 1
Joined: 4/4/2007
From: Hamburg, NJ, USA
Status: offline 		I am trying to pick out a charger that will charge both my tx and rx batteries at once. I am just looking for a simple wall charger and was wondering if one with the below specs would work. Here is what I have:

Tx: 8 cell, 9.6V, 1100mAh NiCd
Rx: 5 cell, 6V, 1200mAh NiMH

The charger I am looking at is rated at:

Tx: 11.6V, 110mA
Rx: 5.8V, 150mA

I am concerned about the voltages. Is the 11.6V too high for the transmitter battery and is the 5.8V too low for the receiver battery?

Thanks in advance for you help,
Brian
       Post #: 1

RE: Tx/Rx charger confusion - 4/29/2008 9:08:12 PM   
BarracudaHockey



Posts: 10088
Joined: 7/13/2003
From: Orange Park, FL, USA
Status: offline 		Most of the wall wart style chargers aren't set up to deal with 5 cell (6 volt) packs.

Look for something like an Accucyle Elite, its worth the investment to know your batteries are in good shape.

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RE: Tx/Rx charger confusion - 4/29/2008 9:08:47 PM   
Rodney



Posts: 4617
Joined: 12/8/2001
From: FL
Status: offline 		That unit should work fine for your batteries, the stated voltages are fine.

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RE: Tx/Rx charger confusion - 4/29/2008 10:15:31 PM   
Jazzy



Posts: 1093
Joined: 1/8/2002
From: Erie, PA, USA
Status: offline 		Rodney is correct. The only issue you may find is the RX current will drop to somewhere in the vicinity of 110mA due to the higher voltage rating of the 5 cell pack. Should be fine.

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Aww $#!^.... I left the )@#& transmitter at home!

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RE: Tx/Rx charger confusion - 4/30/2008 12:03:58 AM   
JustErik


 

Posts: 546
Joined: 7/19/2006
From: Charlottesville, VA, USA
Status: offline 		The Hobbico RC MultiCharger will do what you're asking. It's old-school (no digital displays, automatic functions or fancy features), but inexpensive, flexible and reliable. I have two of them and really like the simplicity and flexibility.



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RE: Tx/Rx charger confusion - 4/30/2008 5:05:21 PM   
BarracudaHockey



Posts: 10088
Joined: 7/13/2003
From: Orange Park, FL, USA
Status: offline 		So you boys are saying a 5.6v output will fully charge a 5 cell, 6 volt reciever pack??

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RE: Tx/Rx charger confusion - 4/30/2008 5:19:51 PM   
JustErik


 

Posts: 546
Joined: 7/19/2006
From: Charlottesville, VA, USA
Status: offline
quote:

ORIGINAL: BarracudaHockey

So you boys are saying a 5.6v output will fully charge a 5 cell, 6 volt reciever pack??



I think if you stick a meter on the output lead for the RX charger, you'll find it's much higher than 5.6.......probably between 7.5 and 9 volts. What they're saying is the charge rate will be diminished, but it will still charge a 5-cell pack. I'm pretty sure the concept of constant-rate versus constant-voltage comes into play here, but beyond that, I'm not sure exactly how it fits in.

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       Post #: 7

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