Battery Battery Charger Advise

[Jasisdad]

Guys,

Have a 18v 1.2 ah Black and Decker Cordless Drill. Have lost the charger

I have just bought an 18v 1.0 ah charger from Maplins.

Question is the difference between the 1.2 ah Drill and the 1.0 ah Charger. Is this safe? I presume it wouldn't be if it was the other way round but will it just take longer to charge?

Many thanks

 

[telectrix]

is it that the charger is 1A, not 1AH?

 

[Des 56]

battery is rated in ampere hours
Here's my opinion,its not an expert opinion by the way

The battery that needs charging is 1.2 ampere hours
Thats 1.2 amps at the 1 hour rate
You may find that the charging voltage may drop because of the rating of the charger, because it cant deliver the required 1.2 amps, and will take forever to charge not just an extended period