These instead of a hump pack?

[Austin2048]

i found these batteries on hobby king. they are AA batteries but they are rechargeable and they are 2200 mah. could i just throw 4 of these in my rig and have the same effect as a hump pack? it'd be SO much cheaper and i already have a decent energizer battery charger.

here is a link to the batteries:
http://tinyurl.com/y9j8a7l

 

[Metalhead Matt]

You'd need to make a 5 cell pack with them. 4 x 1.2 volts=4.8 volts. Low end of what your radio gear needs to run. They would make a nice 5 cell pack, but you may have trouble getting them to fit in your battery box.

 

[Austin2048]

Do they sell 5 AA battery holders that I could buy?? I don't mind zip tying them onto my front shock tower. That's how I mount my batteries anyway

 

[SteelCityNitro]

Honestly for all the more trouble you will go through making that and finding some offbeat battery holder, you probably end up spending enough time, effort, and money making that work for you rather than just buying a hump pack with will fit directly inside your existing holder.

 

[Austin2048]

getting the batteries to fit isn't really a problem since i haven't used my battery box in months. its sitting in my toolbox. i have this strong velcro strap i use to strap my battery holder to my front shock tower. and I'm really broke right now, the batteries are really cheap, and i already have a battery charger for them. I'm sure someone makes a 5 AA battery holder. or how about a 6 AA battery holder? can my receiver handle 6 AA batteries?

http://letsmakerobots.com/node/5403?s=l

 

[olds97_lss]

I wouldn't suggest running 7.2V. You'd be better off just making your own pack if you want to go that route. I used hot glue to hold the cells together in a 4x1 stack, then put heavy wire as the jumpers to solder onto the battery ends, wrapped it in a couple layers of black tape, put a balloon over it, then wrap a couple more layers to protect the balloon:

I made AA packs that way quite a few years ago and still to this day run them on my savage and jato. With the capacity of an AA NiMH cell, you can run a really long time. I have yet to have a pack die on me during a full day of running. I peak charge them with my RC charger before I go out.

Almost 6 years ago on my maxx:

Used a hose clamp with rubber inner tube to hold it onto the chassis. Zipties didn't hold up and cost me a runaway.

I got better with the connector wire and now just use old HD servo plugs from old dead servos as my plug and solder that directly to the battery to remove the solder joint out of the pigtail. For some reason, those solder joints tended to crack, but the ones on the cells directly held up fine.

 

[Austin2048]

Hmm nice idea there. How did u wire the batteries together? And what gauge wire did u use to solder em together?

 

[olds97_lss]

They are wired in series and I think I just used 14 or 12 gauge speaker wire... the copper bits, as the jumpers.