Best quality you can find at jumia. A trial will convince u

This   8000mAh Li-ion Rechargeable is a high powered li-ion battery that is perfect for demanding electronics such as tactical LED flashlights. These batteries feature 3.7 Volts of power and a top of the line 8000mAh capacity that will keep high drain electronics running longer than competing power sources. Combined with reliable manufacturing quality and bulk value pricing, this 18650 is one of the best deals when it comes to li-ion power. High quality and durable, No memory effect; Provides excellent continuous power sources to your device.

• High performance 18650 8000mAh 3.7V Protection Li-ion Rechargeable Battery
• Type: 18650 Protection
• Capacity: 8000mAh
• Voltage: 3.7V
• System: Cylindrical Li-ion Battery
• Great for LED flashlights and high drain devices
• Equipped with the latest technology for complete safety
• High quality and durable, No memory effect;
• Provides excellent continuous power sources to your device