No Need to charge just use standard AA Batteries. Requires Batteries we Recommend Duaracell. Comes to you in anodised Gold (Yellow) Colour (see picture) Great for a backup for when the rechargeable starters fail. Note; AA starters can not be used to charge batteries. Will fit all Models that use a Glow Plug that is M8 8mm (hex) in diameter from flat end to flat end. These are glow plugs that are used on Smartech and ACME models. If you are unsure if it will fit your model engine then please contact us at info@blacksmithproducts.co.uk Notes: Will fit most nitro buggies including the Smartech / ACME / Hi Speed / BSD Models