3.8V, 3200mAh, Li-ion Battery fits Bluebird, Ef500, Ef500r, 12.16Wh

Battery Fits Models:- Ef500, Ef500r, Ef501, Ef501r

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Battery Part Numbers:- Bat-ef500_s

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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. The replacement battery listed here is developed using the highest quality components.  If you have the battery model number, this is usually the best way to identify the correct replacement battery for your device. Some batteries can easily be placed from just the model of the device. Some are much harder to pin down. If you want to make 100 Percent sure of fitment, we offer a guaranteed fitment service. Just contact us, and we will decide for you. If you have the battery model number, this is usually the best way to identify the correct replacement battery for your device. Some batteries can easily be placed from just the model of the device. Some are much harder to pin down. If you want to make 100 Percent sure of fitment, we offer a guaranteed fitment service. Just contact us, and we will decide for you. Ensure that you have verified that you are ordering the correct battery, look at the voltage and battery part numbers, and make sure they match. We can select for you just live chat with us, and we will confirm the product you need. 12 Months warranty is usually standard on all Cameron Sino products. If there is any difference in this policy, it will be stated on this page. Any misuse of the battery or modifications will invalidate the warranty. Lithium-Ion and Lithium-polymer cells usually last for between 400 and 500 cycles; Nimh cells can be charged for around 500 cycles, cycle life will vary according to several different factors. There is no set life cycle of any of these cells. Factors that influence their lives include temperature, humidity, and charges.  Being an ISO 9001 certified factory means that the Cameron Sino range of batteries must be manufactured with only the highest quality components. You can rest assured that the batteries we supply are thoroughly tested in the devices they are designed for and built with the same safety protocols as the original OEM battery. All of the known fitments for this product can be seen in the table below. Special Remarks:- None at this timeThe manufacturers supply all information regarding fitment as a final check; it's worth comparing your original battery with the one shown. We keep our records as up-to-date as possible, but new fitments come on stream every week due to the launch of new products.Do not be alarmed if the Mah (Milliamp Hour) is greater or less than the original. This figure stated is an estimation of the battery's capacity to store charge and will not affect the original equipment or charging.