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  1. #1
    RC Competitor
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    What is your views on best battery charging practice?

    My NiCad stuff like a cordless drill, I've learned to let the battery drain down and not charge it until you lose power. My battery lasted about 5 years, in some cases months between charges.

    What's the best charging practice for NiMh? The Revo 3.3 RX battery goes out fairly quick, and I bring it home and recharge it and won't use it for 3 to 5 days and do a quick top off before I head out.

  2. #2
    RC Champion olds97_lss's Avatar
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    I run my receiver packs down all the way to nothing using a bulb in the spring. Then I let them cool, charge them at 1A, let them cool, run them down again, then charge at .5A. The morning before I take them out, I top them back off. They seem to last a few years and give me decent run times.

    I typically just run cheap tenergy/intelect 1600mah hump/flat packs.
    Expert rigging at it's best!

  3. #3
    RC Competitor
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    Quote Originally Posted by olds97_lss View Post
    I run my receiver packs down all the way to nothing using a bulb in the spring. Then I let them cool, charge them at 1A, let them cool, run them down again, then charge at .5A. The morning before I take them out, I top them back off. They seem to last a few years and give me decent run times.

    I typically just run cheap tenergy/intelect 1600mah hump/flat packs.
    When you say you run them down, I read someplace you should not discharge the NIMH pack. I'm using a Thunder AC6 charger. I charge the RX battery at a half amp. The charger has the availability to discharge the pack @ .1 amps, very slow. Are you saying this is ok? What voltage is the recommend storage voltage for long term storage?

    Also when my battery is to low to run do I need to discharge?

  4. #4
    Marshal Double G's Avatar
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    nimh do not suffer the same memory effect that nicd batteries do so you can charge them at any point. I keep them fully charged for storage and after a few runs I top them off. I have a pair of 1600mah batteries and charge them at 1c and they sit in an unheated garage during the winter. If I recall, one battery is ten years old and the other is probably two or three.
    The Super Derecho

  5. #5
    RC Competitor
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    Awesom Dr. G! Thank you.

  6. #6
    RC Champion olds97_lss's Avatar
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    Quote Originally Posted by CBerry View Post
    When you say you run them down, I read someplace you should not discharge the NIMH pack. I'm using a Thunder AC6 charger. I charge the RX battery at a half amp. The charger has the availability to discharge the pack @ .1 amps, very slow. Are you saying this is ok? What voltage is the recommend storage voltage for long term storage?

    Also when my battery is to low to run do I need to discharge?
    NiMH and NiCAD can be run down to 0v. When taken off the light/motor/whatever, they recover a bit and by the time they are room temp, I just charge them back up. Kind of does a force cycle of them. NiCAD's were more prone to memory issues, but I haven't had any issue doing this to my NiMH packs as well.
    Expert rigging at it's best!

  7. #7
    RC Qualifier chops1sc's Avatar
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    Jan 2007
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    I recently picked up a Tenergy TB6B to help my charging situation. We got my son a MERV and 2 Traxxas 1200mah nimh packs and I wanted to give them the longest life. The TB6B will cycle charge them (discharge to 0 then full charge automatically) and I have consistently gotten 1300+mah from both batteries charging this way. This charger has also helped my lipo charging game since my older lipo charger does not have a storage charge feature which is key for lipo life.
    Revo .18TM BL Rustler Stampede MERV HPI Sprint 2

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