High Quality, high capacity rechargeable battery. No memory effect. Can be charged or discharged as needed without loss of capacity. Overcharge protection, with built-in battery life microchip. Capacity: 2600mAh Dimension: 67.59 x 18.54 x 18.54mm Compatible Part nos: VF5 Compatible Models: TomTom Go 300, Go 400, Go 4D00.001, Go 500, Go 510, Go 510T, Go 530, Go 530T, Go 600, Go 700, Go 700T, Go 710, Go 910. SMAVCO and the SMAVCO logo are trademarks of SMAVCO LLC.