Amazon.com: NP99sp NewPower99 Battery Kit for Samsung Galaxy Tab 3 8.0 SM-T310, SM-T311, SM-T315 with Tools, Video Instructions, Long Life Battery : Electronics
Battery T4450E compatible with Samsung T310 Galaxy Tab 3 8.0, (Li-ion, 3.8 V, 4450 mAh, Original (PRC)) - GsmServer
New Battery For Samsung Galaxy Tab 3 7.0" 8.0" 10.1" T4000E T4450E T4500E T4500C - Walmart.com