replacing radio and rewceiver batteries - RCCanada - Canada Radio Controlled Hobby Forum
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Old 01-27-2007, 06:01 PM   #1
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I am: stan kern
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replacing radio and rewceiver batteries

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I am about to replace a futaba radio battery and also a reciever battery
any special tips i should know about ,the radio is going to be a challenge as there is not a lot of room,but once its in its in .
I'm going to solder them (purchased batteries with tabs) and tape them together,making sure the + stays away from the case.
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Old 01-28-2007, 08:08 AM   #2
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tape may not be good enough for the reciever pack. glue the cells together side to side. ca or goop heat shrink is cheap enough id use it before tape. the battery lead for the reciever may have some corrossion in it. a new lead is my choice,. add it all up and a new nicad pack can be had for about 20 cdn.
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Old 01-28-2007, 05:47 PM   #3
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Hey Stankern,

Welcome to RCCanada, and good on ya for deciding to build your own packs.
I'm pretty sure that's what you mean in your post, but make double sure that the tabs cannot come into contact with the case of any cell. That'll end your fun in a hurry.

Other than that it's really a piece of cake. Tape is fine for the transmitter pack, but Volksman is dead on about the RX pack. I assemble mine with a bit of Goop, then put heatshrink over the whole pack when done.

Just make sure that all the wires are properly insulated from everything else so they can't chafe into a shorted condition over time, and definitely pot the wires to the pack where they're soldered. Do this by putting a glob of Goop on the wire and battery next to the solder joint. This will provide a strain relief and prevent the wires from fatiguing right next to the solder joint.

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