HQRP Replacement Battery for Sandisk Sansa E250 E280 MP3 Player with Tool plus Universal Screen Protector HQRP Replacement MP3 Player Battery plus HQRP Universal Screen Protector; Battery Type: Rechargeable Lithium-Ion Battery; Capacity: 700mAh; 100% compatible with original battery and charger devices; No memory effect, the battery can be recharged without loss of capacity; 200 days warranty.