[Oscar]

Someone has just sent me this by PM (thanks you know who you are), and it seems like sensible advice which you may find useful

There is alot of misinformation out there but I did much research before I dived in.
There are basically 4 things that matter on a lipo, the capacity (in mAh), the 'c' rating, the size (if it fits your car) , and of course price. Unlike other types of battery, the capacity in mAH (typically between 3300 and 5000), as well as indicating run time also relates to the amount of current it can deliver. The way it works is 'c' rating, for example 35C, then multiplied by the capacity/1000, so a 5000 mAh 35C can deliver a current of 35 x 5000/1000 = 175A, while a 3600 25C can deliver 25 x 3.6 = 90A. I have various packs and find for 2wd even the lower rated ones are fine whilst for hot motors and 4wd you are better off with something at the upper level example. Run time never an issue but power delivery can be.

Store Lipos part charged, so I usually run the race and then just put them away, so they would be around 50% charged.

As far as brands don't worry about 'designer' brands as they all come from a few factories in China originally. The Intellect ones you can buy on ebay shops from Hong Kong are much cheaper that the 'branded' ones in this country and are BRCA approved (check the list) and perform equally well. In fact they are actually the same batteries with a different sticker on and marked up, have a look at the Demon ones or the Epic ones, they are re-stickered intellect batteries. You are talking the difference between 45 quid and 80 per pack, and 2 packs is fine.

Buy a balance charger for around 30 quid.