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Old 21st November 2004, 12:34 PM   #1
doomsweek is offline doomsweek  Philippines
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Default SLA Battery Charger

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
Constant Voltage Charge Method is recommended by Panasonic. Thanks.
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Old 21st November 2004, 09:07 PM   #2
apolon34 is offline apolon34  France
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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.
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Old 21st November 2004, 10:04 PM   #3
paulb is offline paulb  Canada
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Location: Calgary
Also check out the UC3906, made by TI (originally by Unitrode).
The Application Notes for this device provide a lot of information about how to properly maintain lead-acid batteries.
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