Samsung 4000 mAh Mobile Battery, Voltage: 3.7 V, Rs 200 /piece Hi Tech Accessories | ID: 20092794112
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iPhone XI Max For 2019 Will Feature A 4000 mAh Battery, 15W Charging
Xiaomi on Twitter: "4000mAh battery life and 18W fast charging are the perfect duo for your everyday use. What's more, the 18W adaptor is included in the box! #RedmiNote8T #4Cameras4Everyone https://t.co/YD4cm6sINk" /
13 smartphones with 4000mAh battery and higher
4000mAh Battery for ODROID-GO Super and RG351V – Shaka Intekanational LLC (ShakaWorld)
Battery | Lead-Acid | Rechargeable | 6 V | 4000 mAh | 70 mm