The best battery solution depends on your applications. A high capacity rating is good for long duration applications like in electric vehicles and flashlights. On the other hand, a high discharge rating is good for high power applications like in vaporizers and power-tools.
Sometimes the size of your batteries are important when building a pack or fitting them inside of a device. Weight is a good way to quickly check whether your batteries are authentic. Chemistry will tell you how safe the battery is, and what kind of protection circuitry you will need if any. Panasonic is the market leader, but Samsung, Sony, and LG all produce very high-quality cells.
The 18650 battery is a set of chemicals inside a protective steel case. Then PVC shrink wrap is applied over the steel case, which gives the 18650 its color. Some companies buy cells from large manufacturers like Panasonic, and rewrap it with their own custom-branded PVC tube.
Imported Cylindrical Li-ion Battery Specification | |||||||||
Brand | Model No. | Nominal | Max. Charging Voltage | Nominal Capacity | Minimum Capacity | Max. Discharge | Dimensions (mm) | Weight (approx.) | |
Voltage | |||||||||
V | V | mAh | mAh | Rate | Diameter | Height | g | ||
Samsung | 18650_22F/22FM | 3.6 | 4.2 | 2200 | 2150 | 2C | 18.5 | 65.5 | 50 |
18650_26JM | 3.6 | 4.2 | 2600 | 2550 | 2C | 18.5 | 65.5 | 50 | |
18650_26FM | 3.7 | 4.2 | 2600 | 2550 | 2C | 18.5 | 65.5 | 50 | |
18650_26F | 3.7 | 4.2 | 2600 | 2550 | 2C | 18.5 | 65.5 | 50 | |
18650_26HM | 3.6 | 4.2 | 2600 | 2550 | 2C | 18.5 | 65.5 | 50 | |
18650_28A | 3.75 | 4.35 | 2800 | 2700 | 2C | 18.5 | 65.5 | 50 | |
18650_29E | 3.6 | 4.2 | 2900 | 2850 | 10A | 18.5 | 65.5 | 50 | |
18650_30A | 3.75 | 4.35 | 3000 | 2900 | 2C | 18.5 | 65.5 | 50 | |
18650_30B | 3.75 | 4.35 | 2950 | 2850 | 2C | 18.5 | 65.5 | 50 | |
18650_32A | 3.75 | 4.35 | 3200 | 3100 | 2C | 18.5 | 65.5 | 50 | |
18650_22P/PM | 3.6 | 4.2 | 2150 | 2050 | 10A | 18.5 | 65.5 | 50 | |
INR18650-30Q | 3.6 | 4.2 | 3000 | 2950 | 10C | 18.5 | 65.5 | 50 | |
18650_32E | 3.6 | 4.2 | 3200 | 3100 | 10A | 18.5 | 65.5 | 50 | |
18650_35E | 3.6 | 4.2 | 3500 | 3350 | 10A | 18.5 | 65.5 | 50 | |
21700_40T | 3.6 | 4.2 | 4000 | 3950 | 35A | 21.5 | 70.5 | 69 | |
21700_50E | 3.6 | 4.2 | 5000 | 4800 | 12A | 21.5 | 70.5 | 70 | |
Sanyo | UR18650ZY | 3.7 | 4.2 | 2600 | 2500 | 2C | 18.5 | 65.5 | 50 |
UR18650ZT | 3.7 | 4.3 | 2800 | 2700 | 2C | 18.5 | 65.5 | 50 | |
UR18650ZM2 | 3.6 | 4.2 | 2600 | 2550 | 2C | 18.5 | 65.5 | 50 | |
UR18650AA | 3.6 | 4.2 | 2250 | 2150 | 2C | 18.5 | 65.5 | 45 | |
UR18651BF | 3.7 | 4.3 | 3400 | 3300 | 2C | 18.5 | 65.5 | 50 | |
Panasonic | NCR18650A | 3.6 | 4.2 | 3100 | 2950 | 2C | 18.5 | 65.5 | 50 |
NCR18650B | 3.6 | 4.2 | 3400 | 3250 | 2C | 18.5 | 65.5 | 50 | |
NCR18650BE | 3.6 | 4.2 | 3200 | 3150 | 2C | 18.5 | 65.5 | 50 | |
NCR18650PF | 3.6 | 4.2 | 2900 | 2750 | 10A | 18.5 | 65.5 | 50 | |
NCR18650GA | 3.7 | 4.25 | 3500 | 3350 | 2C | 18.5 | 65.5 | 50 | |
NCR18651BD | 3.6 | 4.2 | 3200 | 3100 | 10A | 18.5 | 65.5 | 50 | |
LG | 18650 M26 | 3.65 | 4.2 | 2600 | 2500 | 10A | 18.5 | 65.5 | 50 |
18650 M26S | 3.65 | 4.2 | 2600 | 2500 | 3C | 18.5 | 65.5 | 50 | |
18650 MH1 | 3.67 | 4.25 | 3200 | 3100 | 10A | 18.5 | 65.5 | 50 | |
18650 MF1 | 3.65 | 4.2 | 2200 | 2100 | 3C | 18.5 | 65.5 | 50 | |
18650 MJ1 | 3.65 | 4.2 | 3500 | 3400 | 3C | 18.5 | 65.5 | 50 | |
18650 F1L | 3.65 | 4.2 | 3350 | 3250 | 10A | 18.5 | 65.5 | 50 | |
21700 M50LT | 3.6 | 4.2 | 5000 | 4800 | 10A | 18.5 | 65.5 | 70 | |
MOLICELL | INR18650-P26A | 3.6 | 4.2 | 2600 | 2500 | 35A | 18.5 | 65.5 | 50 |
INR18650-M35A | 3.6 | 4.2 | 3500 | 3400 | 10A | 18.5 | 65.5 | 50 | |
INR21700-P42A | 3.6 | 4.2 | 4200 | 4100 | 45A | 21.5 | 70.5 | 70 | |
INR21700-M50A | 3.7 | 4.2 | 5000 | 4800 | 15A | 18.5 | 65.5 | 50 |
• High energy density, over 150~800Wh/kg and 250~530Wh/L
• High working voltage from 3.7V to 4.2V
• High output with 300~1500W/kg (@20 seconds)
• No memory effect
• Working temperature from -40 to 80 degrees
• Quick charge and discharge
• Portable exchange devices: POS Terminals, Handheld, Fingerprint machine, mPOS etc.,.
• Video devices: GPS/GSM Trackers, digital camera, camcorder, portable television
• Portable office devices: Notebook, PDA, portable electrograph, portable printer, Bluetooth keyboard, Bluetooth headphones.
• Telecommunication: Smartphone, walkie-talkie, interphone, Bluetooth transmitter
• Lighting devices: miner lamp, searchlight.
• Others: toys, models, adult products.