RS PRO 7.4 V Lithium-Ion Rechargeable Battery Pack, 5.2 Ah This battery pack from our trusted RS PRO range features four cells in a compact 37 x 69 x 38 mm formation. This makes it a practical choice for charging hand-held devices, walkie talkies and telephones when you don't have access to mains electricity and size is a consideration. Their Lithium-ion chemical composition provides a stable supply of power and enables the battery to retain an efficient charge. This model offers voltage of 7.4 V and amp hours of 5.2 Ah so it will deliver plenty of power. It's also rechargeable multiple times. The pack is thermally stable, so you can use it at temperatures ranging from -20°C to +60°C. This product comes pre-wired with bare wire terminals, making it quick and easy to connect it to your chosen device. Features and Benefits - Lithium-ion chemical composition for stability, voltage capacity and charge retention - Rechargeable multiple times - Pre-wired bare wire terminal - Four cells, 7.4 V - Charge capacity of 5.2 Ah - Battery size of 37 x 69 x 38 mm - Minimum operating temperature of -20°C - Maximum operating temperature of +60°C