My 12v 7.2ah battery.....

....is a good little power unit for my Mini-ITX, and my phidgets!
Hurruh!
Question.
Can I leave the boards connected to the battery while I charge the
battery? Any thoughts?
Reply to
rw
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As long as your Battery charging voltage does not exceed the rated voltage of the ITX or the Phidgets then , you should have no worries.
I would recommend you find out the max voltages of your peripherals first. Then use a regulated power supply of 13.8Vdc or less
rw wrote:
Reply to
steve vorres
Personally, I'd recommend plonking the money down on a good battery charger -- the OP will find his batteries last a whole lot longer. I use the Battery Tender Plus for my 7.2AH and under 12 volt batts.
SLAs aren't as sensitive to poor charging regimes as are NiCads, but they're still surprisngly sensitive.
Reply to
The Artist Formerly Known as K
Very bad idea. Variations in the current draw will cause the charger to terminate charge early, or too late and damage the battery.
Two batteries. Charge one, run the other.
Reply to
Dave VanHorn
Unless accounted for. Laptops can do that so it is possible. Needs special attention and probably propriatery charger though.
Regards, Andras Tantos
Reply to
Andras Tantos
They do this by NOT powering the system from the battery when the battery is under charge. The system is powered from the external source.
Reply to
Dave VanHorn
I use a 12V power supply to both charge the battery and I also use it when I want to run the electronics for a longer time.
My power supply is a PW-70 or a PW-120. -- D. Jay Newman
Reply to
D. Jay Newman
The Artist Formerly Known as Kap'n Salty wrote in message news:...
Thanks for everyones replies
I'm using a Sunpower 1.5a Three stage SLA battery charger
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Would you class this as a 'good charger' ?
Reply to
rw
message news:...
It's hard to tell without access to the docs (I'd have to register), but it's likely much better than a simple 13.8v constant current power supply, which is often used to charge SLAs.
Cheers -- m
Reply to
The Artist Formerly Known as K
Sorry, I guess I misread this the first time, thinking you were talking about Nicad/NIMH batteries.
SLA or Gel and a float charger works fine for this sort of service, as long as the battery is rated for deep cycle service, and the charger is adjusted properly. I run my ham radio gear this way, loads of 200-400W with a 25AH battery and a simple "one-stage" float charger.
Reply to
Dave VanHorn
Ok thanks for the advice all, happy roboting. :-)
Reply to
rw

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