iTEKIRO 1000mAh Replacement Battery for Vivitar DVR-560G Vivicam 3660 5660s 7500 7500i 7388s 7399 8320 Digital Cameras Camcorders 1000mAh higher capacity Made with high quality cells for the best performance The battery's integrated microchip prevents overcharging & lengthens battery life Lithium Ion chemistry type has no "memory effect" Backed by 30 days money back guarantee and 1 year replacement warranty