millamps to amps to volts - RCCanada - Canada Radio Controlled Hobby Forum
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Old 10-22-2004, 08:52 PM   #1
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millamps to amps to volts

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Is there a site with all the electrical conversions??
I have just bought a BR2000 chger cycler and not sure of the right settings
for instance
9.6 volts is how many milamp.and amps
4.8 volts is how many milamp.and amps
Thanks for the help KH
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Old 10-22-2004, 09:00 PM   #2
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the milliamps are completly seperate from volts. Look on your battery, if it is a 4 cell nicd, or nimh it will be 4.8 volts (1.2 volts per cell). It will also say the milliamp rating, or capacity of the battery. You can get 600mah 4.8V packs and also 2400mah 4.8V packs. As for conversions, 600milliamps is 0.6 amps. 2400milliamps is 2.4 amps. Hope that helps.
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Old 10-23-2004, 01:46 AM   #3
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Further to recon......

Normal charge voltage is 1/10 th the capacity of the pack. So if pack is a 700 mAh battery back you can safely charge at up tp 70 mAh of charging current. Most chargers that come with the TX & RX are at 50 mah.

What charge rate have you beeen using?
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Old 10-23-2004, 06:59 AM   #4
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charge rate

I think when Jim is referring to the 1/10 C charge rate, he is referring to the "overnight charge rate" at which you can leave your battery on to charge overnight without too much worry of cooking the pack. This is typically what the charger that came with your radio system is set for. You can always charge at a rate higher than 1/10 C (one tenth the capacity of the pack). NiCd's are pretty good up to 3C charge rate, and NiMh's are ok up to 2C charge rate. However, my rule of thumb is NiCd's 2C and NiMh's 1C.

You can't use the charger that came with your radio system to charge receiver packs greater than 4.8V. That is what the "Triton" is for...

There is good info at the following battery sites:

Jim, did you ever get that 40 sized extra up flying? It has been a year since I met you in Mississausage.

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