7.2V, 4000mAh, Li-Polymer Battery fits Topcon, Gr-3, Gr-5, 28.8Wh

Battery Fits Models:- Gr-3, Gr-5

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Battery Part Numbers:- 02-850901-01, 02-850901-02

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Our batteries from Cameron Sino are built using the highest quality components manufactured by the world's leading factory. This battery will function the same as the OEM battery. Batterybuyer.com supplies some of the world's best generic replacement products available in the world today. Batteries come in all shapes and sizes; quite often, a single battery model will replace hundreds of other models. The manufacturers, in their wisdom, have assigned different part numbers to like batteries. We can usually cross-reference this product to the correct replacement for you.  Batteries come in all shapes and sizes; quite often, a single battery model will replace hundreds of other models. The manufacturers, in their wisdom, have assigned different part numbers to like batteries. We can usually cross-reference this product to the correct replacement for you.  You can confirm that this particular battery will fit your device by checking the tables below. Our warranty period is usually stated here on the product page; Most products come with a 1-year warranty, Some products do have six months. Details of what is included in our contract can be seen on our information pages. Different chemistries of batteries have other cycle lives; Li-Ion usually lasts for around 400 to 500 cycles, Lithium Polymer is the same. Nimh batteries will usually last for about 500 cycles. A cycle is a full discharge and recharge of the battery. How can I be sure that this battery is safe? ISO 9001 certification means that our factories never take shortcuts with the manufacture of our batteries. All safety components are included. This ensures the safe, trouble-free operation of this replacement battery. The specifications should be the same as or better than the original.  This replacement battery is designed to replace the models shown below. Special Remarks:- None at this timeYou must check that you are going to order the correct battery. To be certain of fitment, make sure that the battery number, device model, and manufacturer are listed in the description. This is the only guarantee that this is the correct battery. Contact us if you would like us to confirm for you.Mah is the figure that estimates the charge that a battery will hold. The higher the Mah, the longer the runtime.