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Battery for gas boat electronics.

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Old 05-16-2014, 08:02 AM
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zen3
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Default Battery for gas boat electronics.

I have been using 4 double A energizer batteries in a battery pack to power my 2 large non digital scale servos. 1 throttle standard servo, and rx. Needless to say the batteries drain quickly and it's expensive. I have 9.6v 1600mah and 700mah nimh. And also 7.4v nicad batteries at 1800 mah. And 8.4v nicad batteries at 3000mah. Can any of these power my electronics safely.
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Old 05-16-2014, 03:15 PM
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You're safer with the 7.4 volt packs. I've tried 9-volts but I really don't recommend them. Most boaters are only using 6-volt packs, 5-cells if you will.
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Old 05-16-2014, 04:42 PM
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Thanks Ron. Have a bunch of them from my kids traxxas cars. They switched to lipo and brushless. So I have all these practically new nicads around. Wasn't sure if you could only use 6v. The weight of the pack up front will do my tunnel balancing good. Thanks.
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Old 05-16-2014, 06:12 PM
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None of those are suitable for receiver/servo use unless you have HV lipo rated servo's of which your analogue servos almost certainly are not. You will need a regulator which is a waste of time and money and more electronics is not what you want in a boat.

Get a Life 2S 6.6 volt pack of 1300 mah to 1800 mah. Plug right in and work with almost all servos.
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Old 05-16-2014, 07:05 PM
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I agree with Daniel. I switched over to the 1300mah Life packs he suggested and will never go back to NIMH batts. In fact I bought mine from him. They hold a charge forever. I run a volt meter in my radio box's and they never seem to get below 6.45V! I balance charge them maybe once every 3 weeks out of guilt mostly. Brian
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Old 05-17-2014, 04:37 PM
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If you work up a 5 cell pack of NIMH that will work also I use 3000 ma and they last a long time for me.
Dave
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Old 05-17-2014, 05:33 PM
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Quote:
Originally Posted by idocdave09 View Post
If you work up a 5 cell pack of NIMH that will work also I use 3000 ma and they last a long time for me.
Dave
I could do that I guess.
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Old 05-18-2014, 04:07 AM
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Do you have a charger that will charge LiFe packs. Not LiPo but LiFe it is a different . Lipo's 2S charges at 8.4 volt and a LiFe is charged at 7.20 volt. These are not the actually voltage just the charge voltage. Once it is off the charger a LiFe will settle down to 6.66 - 6.68 volt


If you have the compatible charger already then just get a LiFe pack. They weight a lot less than what a comparible NiMh is and the LiFe will supply a full 6+ volt for it's entire safe discharge even under load.


They are cheap. My LiFe 1300 packs only cost $17 each.
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Old 05-18-2014, 04:51 AM
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I have to check. I do believe my Hyperion 1210i can charge life. Then I'll get back to you about the pack.
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