Cameron Sino 4400mAh Battery for Canon ES-300V, ES-4000, ES-410V, ES-420V, ES-50, ES-5000, ES-520A, ES-55, ES-60, ES-6000, C2, E1, E2, E30 (4400mAh) .Cameron Sino offers premium quality batteries and chargers at an affordable price. Our products are CE and RoHS certified .We offer a wide range of products