Ni-MH batteries have higher energy than ordinary battery， but they have higher self discharging rate and shorter shelf life. Therefore， please always keep Ni-MH cells / battery packs in charged condition after using before putting them on the shelf. With high energy density， this battery is effective to supply power for you. This battery is regarded better both in low and high temperature operations. Generally， they fit for camera， watch， calculators and other electronic devices， and provide excellent continuous power sources to your device. It is worth a try!                                    Features            <br> High quality and durable<br> Provide excellent continuous power sources to your device<br> High energy density and long lifespan<br> It is good both in low and high temperature operations<br> Fit for camera， watch， calculators and other electronic devices<br>                                                            Specifications             Dimensions     1.93 x 0.55" / 4.9 x 1.4 cm (L x Dia)    <br> Weight     3.28 oz / 93 g    <br> Voltage     1.2V    <br> Capacity     1800mA    <br> Battery Type     AA Rechargeable Ni-MH Battery    <br> Quantity     4 PCs    <br> Color     White      <br>                                                             Package Includes            4 x Battery<br>