SLA Battery Charger

doomsweek · 21st November 2004, 12:34 PM

Hello
How can I make a C/4 charger for my Panasonic Reachargeable Sealed Lead-Acid Battery ( LC-R06R2CH 6V,4.2Ah/20HR ). The battery's data sheet can be found
here
Constant Voltage Charge Method is recommended by Panasonic. Thanks.

apolon34 · 21st November 2004, 09:07 PM

hi,

you can use a L200 which is a regulator with current limit included.

you should charge your battery at 1/10 of it's nominal current.
you have to set the L200 to output 6.9v when the current limit haven't been reached.

paulb · 21st November 2004, 10:04 PM

Also check out the UC3906, made by TI (originally by Unitrode).
http://focus.ti.com/docs/prod/folders/print/uc3906.html
The Application Notes for this device provide a lot of information about how to properly maintain lead-acid batteries.

21st November 2004, 12:34 PM	#1
doomsweek diyAudio Member Join Date: Nov 2004 Location: Cebu, Philippines	SLA Battery Charger Hello How can I make a C/4 charger for my Panasonic Reachargeable Sealed Lead-Acid Battery ( LC-R06R2CH 6V,4.2Ah/20HR ). The battery's data sheet can be found here Constant Voltage Charge Method is recommended by Panasonic. Thanks. __________________ ...?

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21st November 2004, 09:07 PM	#2
apolon34 diyAudio Member Join Date: Jan 2004 Location: rouen	hi, you can use a L200 which is a regulator with current limit included. you should charge your battery at 1/10 of it's nominal current. you have to set the L200 to output 6.9v when the current limit haven't been reached.

21st November 2004, 10:04 PM	#3
paulb diyAudio Member Join Date: Jun 2001 Location: Calgary	Also check out the UC3906, made by TI (originally by Unitrode). http://focus.ti.com/docs/prod/folders/print/uc3906.html The Application Notes for this device provide a lot of information about how to properly maintain lead-acid batteries.

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