rcbryce

hi everyone.
im pretty new to RC things. any any help will be appreciated.
i have a truck with a 7.2V, 1800 mAh battery. but i bought a new baterry so the run time will last longer. so bought a 7.2V 3000mAh. but i need to charge it for ages with the charger that came with the truck, so i need a new charger. could anyone suggest a charger that will work with this battery? that wont cost a fortune?
thanks
Bryce

Goldenduff

Would you consider lipo batteries? A 2 cell lipo is 7.4v and gram for gram has much more run time than nimh or nicd. They can also be charged faster generally.

guver

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Welcome to RCU. I guess that you realise a pack that lasts twice as long will need twice the time to re-charge.

Your stock charger is ok , but slow (maybe 1 or 2 amps?)

I'd look for a cheap charger that does around 5 amps or so. A favorite for doing 1/10 scale stuff was always the DTX digital piranha (or Tower digital) Be aware that they can only do 3 amps on AC and 5 amps on DC.

http://www.towerhobbies.com/products/towp0170.html

The ONyx also seem to be a favorite now. http://www.duratrax.com/chargers/onyx/index.html

Goldenduff

If you swap to lipo batteries some of them can be charged much quicker than nimh or nicd making a lipo of twice the capacity charge faster than a nicd of half the capacity.

rcbryce

will the lipo battery definitely work with the rest of the truck? and if i were to buy a lipo could someone suggest a charger to go with it? thanks

Goldenduff

7.4 v 2cell lipo will work fine- you may have to solder on connectors that match your esc.

rcbryce

so i would just be able to put a battery like this one in? http://www.rccarsextreme.com/product/VEN15085 and i would be able to charge it and it would all run good.

rcbryce

or this one? http://www.rchobbyestore.com.au/Item...S2%20connector (sorry about the editing)

rcbryce

with this charger? http://www.rchobbyestore.com.au/Item...PB%20Batteries

drumduan

Yes, they are good.

I meant to say lipos are worth it, not with it! Basically they need some care.

You should never discharge them below a certain voltage (think its 3.4v per cell but double check that) otherwise you can permenantly damage them- many use a low voltage cut off alarm between the battery and esc unless the esc can be programmed. They also should be watched carefully during charging.

rcbryce

sorry, which battery is good? and how do you discharge them? or will i learn when i get the charger?

rcbryce

well. i just bought this battery http://www.rchobbyestore.com.au/Item...S2%20connector hopefully it works.. :/ i was going to buy a charger aswell, excpet they were out of stock. now im not sure what charger to get as there are soo many options.

rcbryce

well the battery didnt fit in. and was the wrong plug type and didnt want to get an adapter. i cant find any batteries that will fit/have the right plug/ and is a 7.2-7.4V. i need a tamiya style plug. finding heaps of es2