MuchBuy 3.8V 1560mAh Lithium-ion Replacement Battery for iPhone 5S/5C with Tools Kit Environmental friendly and durable. No memory effect, recharge up to 1000 cycles. Standard voltage: 3.8V;Limited voltage: 4.35V Compatibility: iPhone 5S/5C Buy with confidence: MuchBuy 45 days money-back & 18-month warranty!