as topic says
http://www.modelsport.co.uk/voltz-1600mah-6-cell-7.2v-straight-pack-w-micro-connector/rc-car-products/38974
in this as my 4 year old nephew just got this and his dad is asking
http://www.ebay.co.uk/itm/Radio-controlled-RC-car-Buggy-Jackal-1-18th-EP-RTR-Ripmax-RRP-62-99-/281136636699?pt=UK_ToysGames_RadioControlled_JN&hash=item41750ca31b
Cheers Mez