Genuine Original Samsung T4450E 4450mAh Battery for Samsung Galaxy Tab 3 8.0 SM-T310 T311 T315 with Installation Tools - Newegg.com
6400mAh Rechargeable Battery Screwdriver Tool for Samsung Galaxy Tab 3 T310 USA | eBay
Amazon.com: New Replacement Battery 4450mAh SP3379D1H, T4450E for Samsung SM -T310, SM-T311, SM-T315 Galaxy Tab 3 8.0 Tablets with Installation Tools Sold by Toopower : Cell Phones & Accessories