My inspiron 1100 doesnt accept its new battery

[enjibenji]

i have a dell inspirion 1100 and the battery broke and wouldnt retain charge for longer than 20 mins and then the charger broke so, i dieced to buy a new charger and battery from ebay. The charger works because the old battery worked on a/c power. however when i put in the new battery the computer says that it doesnt recongise the battery and will not charge at all.
please can someone help me i am stuck
thanks very much
ben

P.S the battery is an espow battery if that helps

 

[Tmagic650]

Did you make sure that the new battery was designed to be used with your model laptop?

 

[enjibenji]

yes its definatly right for my laptop

 

[lamo]

the battery charge is controlled by EC/KBC. and it's fault quite often on these Compal motherboards.