Re: General battery charging question for NiMH and Lead-Acid powered LED lights for third world applications
- From: ehsjr <ehsjr@xxxxxxxxxxxxxxxxx>
- Date: Tue, 10 Feb 2009 03:30:46 GMT
jwodin@xxxxxxxxx wrote:
Hi there, I have a smattering of random small LED lighting solutions
from various countries, with either lead-acid batteries or NiMH
batteries inside. They all seem to have some sort of charging
circuitry (over voltage protection, etc.)
I'd like to measure the charging time of these LED lights (I have AC
adapters). Can I just monitor the current going into the light from
the AC adapter, or will this likely not reflect the battery state?
I've read that I have to monitor the battery voltage instead?
Thanks
Monitoring the current won't tell you what you want to know.
Charging time will depend on three variables:
the size of the battery, the degree to which it is discharged
when you start, and the charger design. You need information
on all three.
Ed
.
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