Test Nokia OEM Bl-5C Li-Ion Battery with Authentic Nokia Hologram: got 6.5 hours of music play!
ddf at sonic.net
Wed May 12 20:36:50 EDT 2010
Got this battery from :
yesterday. The cost, with shipping, was a little over $10. There
seem to be many BL-5C batteries available with a range of prices. A
bit confusing. There were cheaper ones without the hologram. One
was claimed to not be Nokia by one reviewer. Others had a dud
battery, which they had to return.
The lid is snug on the battery but it can be closed without much extra
effort. I added a cardboard shim, 0.4 mm thick, held in place with
cellophane tape that was then folded over on itself to form a pull tab
for getting the battery out. The web site gives no capacity for the
battery but it is a few grams heavier than the one that comes with the
Ben. Some versions of the battery claim 1050 milliamp hours, others
claim 850 milliamp hours. Based on weight and taking a simple ratio,
I suspect it is close to 1000 milliamp hours capacity or 1 amphr.
My first test so far was to fully charge it, and then run the Ben on
battery, playing music with gmu feeding some PC speakers--not
headphones. I don't know what the load difference between the two
might be. I would stop gmu occasionally and check the voltage given
by the Ben using
and I stopped the test when the indicated voltage was 3.65 volts
(actually shows as 365...., with the lower digits appearing to be
rather noisy). I got 6.5 hours of play under these conditions. It
then took a bit more than 2 hours to recharge with the Ben turned off.
This version of the BL-5C is certainly worth its small cost.
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