how can i change my number of cells does anyoe know where l can find an instruction booklet thanks for the help

The only time you can possibly change the number of cells is when charging a lead acid (Pb) battery. These are rated at 2.0v per cell.

Cache Ya,
Craig.

how about when l want to charge a reciever battery thats got like 5 cells. but l dont know how to change it to that or dont l have to . and what "a " should l charge my glow blug warmer that has a 2700mah bat in it or a 12v pb battery thanks

You don't change the number of cells when charging, only LiPo cells. When you charge receiver packs it doesn't matter if you have a 4 cell or 5 cell. The charger figures it out and charges until full. As for your glow plug warmer it depends on what kind of battery it has, eg NiMh, NiCd, etc. I usually charge at a 1C rating which would be 2.7A on a 2700mAh battery.

Take Care,
Cheers, Patrick