Black and Decker 9.6v extended PS120 3000mAh battery A9251.
Replacement extended 3ah Black-and-Decker PS120 and A9251 battery replacement, longer running between charges, 9.6v compatible NI-MH batteries at low price form UK warehouse.

This extended version of the battery will drill twice as many holes on a single charge than the 1.5ah version and still use the original charger, you could not get a much easier upgrade than this.

Even though the battery will come out almost fully charged it is important to charge when it arrives and first use, if you use the cordless power tool often then you are already looking after it, they like to be used a lot, if however you do not use it much then charge before putting it away and every 8-weeks to keep the cells fresh but do not just leave it on the charger, no more than 8 hours.

The battery chemistry is NI-MH and will replace the older NI-CD batteries as well as fit all of the original chargers.
Voltage is 9.6v
Capacity of battery is 3000mAh or 3ah, the amp hour of the battery is the energy capacity, the more you have the more you can use your tool in between charges.

The battery will replace the following battery codes:
PS120
A9251
PS120a
FSB96
HP9096.

It will fit all of the tools in the range most of which we have listed below, probably missed a few though as quite a lot ere made over the years but if your battery has one of the codes listed above it will fit:
CD231
CD231K
CD9600
CD9600K
CD9600K-2
CD9602K
CD9602
FS9661FK
FS96
FSL96
HP131K-2
HP131
HP131K-2
HP231
HP9060
HP9060k
HP96K
PS310
PS320
PS3200
PS3300
PS3350
PS3350K
PS9600
FS432
HM9600
KC96V
KC96CE
KC96VE
KC9651CN
KC9651
KC9661
KC9661C
KC9661CK
KC9661FK
KC9661CN
KC9682FK
KC9682CN
KC9682C
KC9682
Q115
SX2000
TV230
KC962C.