The most popular Blackberry models are listed here. Please use the search box below the table if your phone or battery is not listed.

Original battery	Popular models	Standard replacement battery	High capacity replacement battery
CS-2	BlackBerry 9300, 8700 8300 Curve, Blackberry 7100 Series
MS-1	BlackBerry Bold 9000, 9700 & 9780
MS-1	BlackBerry Bold 9000
DX-1	BlackBerry 9500 Storm, 9520 Storm, 8900 Curve
F-S1	BlackBerry Torch 9800
FM-1	BlackBerry Pearl 9100 9105
CM-2	BlackBerry 8100, 8110, 8130, 8220
CX-2	BlackBerry 8800c, 8800g, 8800r

Please use the search box if you cannot find your phone:

Finding the model number / type of phone can be tricky. If you don't have the box or the manual, some phones tell you as they switch on or off what model they are (or you can look at the settings in the phone menu). Otherwise you will need to look underneath the battery.

Ignore any of the following: IMEI numbers, any code numbers or barcodes, CE numbers, "N" numbers with a tick box and triangle, FCC numbers and MSN codes. The battery cover is normally on the back of the phone and you will need to press down firmly and slide the cover off at the same time. If you need further help then please email us for advice.

We often have customers who are not sure if their battery is failing or if its the phone or charger. Mobile phone batteries can fail suddenly occasionally but normally they just gradually need more and more charging, and last less time between each charge. See our information under "Quick Help" above if you are not sure its the battery that is at fault.

Remember to give the new battery a full charge before use (ideally with the device switched off) as the battery will not be fully charged initially. Then use the phone normally and top-up the charge whenever its convenient. It is better to do this than to fully discharge the battery every time, however you should aim to do a good discharge at least once a month (i.e. run the battery down to the last bar or until the symbol flashes amber or red).

The "mAh" marking is the nominal capacity of the battery when new in milli-amp hours. Higher capacity is generally better, as long as the manufacturer does not compromise on the grade of cell used and the protection mechanisms for overcharging and short-circuits. We test all of these aspects before offering the higher capacity batteries for sale, and note that you can replace your battery with one showing a higher or lower mAh rating without any problems.

If you are having problems with your phone or similar device then there are 3 likely causes.

1. Faulty battery (or end of life battery).

In our experience, having sold and fitted many thousands of phone batteries, if your phone is generally working OK but you now need to keep recharging the battery at much shorter intervals than you used to, then the Battery is very likely to be the problem.

The quickest and cheapest way to be certain is to try a new battery. We offer a 30 day money back guarantee to allow our customers to try this, all you will have to pay for is the postage if the new battery does not solve the problem. Please retain the packaging in case you want to send back the battery.

A battery can fail suddenly and completely, but most often as it gets older it will not hold as much charge as it did when new, or it will only hold charge for a shorter time period, needing recharging each day perhaps when you used to get a few days between charges.

A battery that has reached its end of life can also sometimes cause the phone to behave strangely, perhaps switching off when you don't want it to, or affecting the display screen. If the phone only works when plugged into the charger then this can be another indication that the battery is end of life - but even then a dead battery can cause problems.

2. Faulty Charger.

First run through the obvious checks. For example if there is a light on the charger does it come on when it should? Does the battery symbol on the device flash as it should when the charger is plugged in? If not then this can be an indication that the charger might be the problem. However the connection on the phone or the phone's internal charging circuitry could also be causing the problem, so its best to try out another charger to localise the fault (for example use an in-car charger or a friends charger if possible). If you don't have an in-car charger to use we can provide most types for $9.95 plus postage, just email or call the store.

3. Faulty Phone / Camera.

If you have ruled out the battery and the charger using the tips above, then the most likely cause of the problem is the device itself. The connector where the charger plugs in is a common source of failure and can work loose, or the internal charging circuitry may have failed.