Originally Posted by
Richard Cranium
Colleen, nice work. Assuming the charger does indeed have sufficiently rated components then the lower charge rate is indeed a plus with respect to battery life.
However, if the charger "heats up" when charging a
completely discharged battery - and if indeed it is NOT limiting the charge rate to nearly 1 amp - then the semi-conductors used in the chargers "gate circuitry" are insufficient in value or capacity. (hmmmm?)
I missed it - but did you measure the current
at the very beginning of a charge of a
completely drained battery?
Was it indeed down near 1 amp, or was it more like 1.6A?
In addition to the measuring you have performed -I used an Excel sheet in conjunction with a stop watch to to record and calculate watt/hours produced during discharge. Although it is necessary to "average" the values across x/minute periods - it is still reasonably accurate method of determining "true" battery/run time /watt hour capacity.
Thanks for getting "down to it" - the bike forums are a better place for people like you.
You get the:
Anti-Richard Cranium Award
for best post to the Lights Forum
Thank you Richard for the award. Wow, first time I've received a reward through a public forum
The battery was completely drain to the time when the Titan light automatic switched to Lo mode. At that time, it was ran for almost 4hrs minus a few minutes. I let the pack rested for a while to let the voltage bounce back to a stable state, then I plugged in the charger. The current remain 0.94 amps from the start and throughout the first half hour while I was monitoring it. It never got above the 0.94 reading which is a good thing as it show the charger has a stable limit clamp for what it is rated for. Somewhere between the 1 and 2nd hrs was when the charge current start to taper down to 0.78amps and so did the housing temperature.