receiver battery
 

Hi there,

I'm also looking into receiver batteries, just a quick Q:

How much runs does a 160mAh pack last?? just a rough number, because it depends on the servo you use and other electronics.
Need to know, so i can decide on how much receiver packs i need to have in my. I preferably don't want to charge them at the track.
We normally do 8 minute runs.


Thanks

By the time you've finished changing out the receiver pack you might as well have charged it.

The 150 mAh cells will last for 2 runs on one charge. It takes about 6-10 minutes to charge a 150 mAh pack after 2 runs (at.5A).

I am selling shorter 70 mAh cells if anyone is interested. They're 11mm long instead of the normal 14mm and quite a bit lighter. You do have to charge them after each run but it only takes a few minutes. Send me a PM if you're interested.

The part number for the Parma Stub axles is #95060. They are not titanium but they are pretty strong.

Paul

why remove the esc switch? i dont get it

Thanks, I guess there is no need for spare receiver packs then.(Well, just one incase the other one gets ripped out off the car during a major crash)

Thanks for the info

You don't reallt have to remove it, just make sure you can't switch it on by accident. If you switch it on while using a receiver battery you can damage your receiver because it is getting to much voltage (from your ESC and your battery pack)

It's not enough to just 'remember' you shouldn't switch it on, because someone else may pick it off the track after youre done racing And thinks he's helpfull SWITCHING it 'off'. You can't really blame him for that..... so.....
just tape the switch away deep inside youre car.

I dont think the voltage would increase to the reciever. The voltage being fed from the ESC is the same as the voltage being sent from the batteries. In essence what would happen is the ESC would start charging the batteries if the batteries were below the output voltage of the BEC output.

I dont think you would harm the Reciever but I COULD see you burning out the BEC in the ESC if its putting too high an Amp load on the BEC due to it trying to equalize the power in that common Pos/Ground line they would be connected to.

ok so when using a receiver pack, pluging that in is your on off switch?

and your esc switch has to remain off at all times?

or am i totally lost here

Yeh thats the jist of it.

well, i understand what i have to do when running a receiver pack, but i dont get how it works, anyone bored enough to draw up a simple diagram showing how it works? i feel like a retard this morning

What do you guys use to connect those small batteries to make a receiver pack? I've tried looking for some Deans bars but they only have standard size for the sub c's.

This is what Hara does.

http://www.kimihiko-yano.net/Image3/P9190053.jpg

I've been using them for over 10 years and I've never bent one.

You can get battery braid to solder the cells together. It's desoldering braid and you can get it from your local Radioshack.

I use old brush shunts as battery bars. If you replace one of the bars with a switch from an old ESC you can leave the receiver pack plugged in and use the switch to turn it on and off.

-James