How do I test the battery to determine if there is a bad cell?

If you are experiencing charger failure, your batteries should be tested for correct voltage. When a charger fails, it could be due to the fact that one of the batteries has a shorted cell, which can put an excessive load on the charger.

The batteries can be tested at one of our service centres.

Please click here to locate your nearest service centre in the UK. If you are in the Republic of Ireland, please click here.

You will then be able to do a post code or city search.

Please Click on "More Details" for Service centre details and look for "Brands Supported" to view if they are able to support your product.

Alternatively if you are unable to find an agent locally, please contact the below agents who will be able to arrange a collection for your tool:

UK:

• South West England and Wales - Miles Tools & Machinery on 01935 421 281
• Midlands - Heath Hayes Marine on 01543 275048 and Power Tool Plus on 0115 940 4414
• North Wales - Fixit Power Tools  on 01492 531999
• North West England - Power Tool Centre on 0151 207 1400

Republic of Ireland:

• Cork - Frank Clark Ltd on 021 4542222
• Dublin - Power Tool-Hub on 01 4190000

The batteries can also be tested using a digital multi-meter. To test the battery, it should be charged on a good Firestorm three-hour charger (do not use any other charger). The battery only needs to be put on the charger for two minutes (this will not damage the charger if only done for two minutes). After charging for two minutes, its nominal voltage should be reached (example: 9.6 volt will read 9.6 volt). Batteries that do not reach their potential voltage will have a shorted cell.

A battery that has a shorted cell should not be used.