26650 lithium battery charging

You can use18650 lithium battery charger to give26650 lithium battery charging, but don't use for a long time, because the 18650 lithium battery charger voltage is higher, long-term use can cause 26650 damage of lithium battery.

18650 lithium battery charger can give 26650 lithium battery, but 18650 lithium battery charger may be voltage is higher, about 26650 lithium electricity damage.18650Lithium ion battery voltage of 3.6 V and 4.2 V, the type 26650 voltage of 3.2 V and 3.6 V.

This statement is wrong, this is very early. Battery for lithium battery, the factory has been activated, and battery charging commonly 2 hours can be full of charging current of 0.5 C (design), and lithium battery has a protection circuit. Therefore, after full of protection circuit automatically disconnect. Even if you are still in the power supply, battery is no problem.

26650 lithium-ion battery is a kind of cylindrical lithium-ion battery specifications.Used for electric tools, lighting, energy storage, electric cars, toys, instruments and meters, ups backup power supply, communications equipment, medical equipment and military light field.

The model law for: the definition of the type 26650, namely the diameter of the battery was 26 mm, length is 65 mm, cylindrical shape of the battery (see chart).Generally used to call lithium batteries, including lithium battery and lithium ion battery at a time.Common useful nickel cobalt manganese cathode material made of lithium batteries, lithium iron phosphate material - INR26650-3.6 - V - 4500 mAh, IFR26650-3.2 - V - 3200 mAh.

Cycle performance: 2000 times (charging 1 c / 1 c discharge, keep the rate of 80% or greater capacity, 100% DOD)

Lithium iron phosphate battery discharge performance figure

Lithium iron phosphate battery discharge performance

Maximum continuous discharge current: 9.6 A

The pulsed discharge current: 15 a, 5 s

Working temperature: charging: 0 ° C ~ 55 ° C;Discharge: - 20 ° ~ 60 ° C C

Storage temperature: - 20 ° C ~ 45 ° C

The battery weight: 86 g (about)

Nickel cobalt manganese ternary lithium ion 26650 single section is commonly: nominal voltage of 3.6 V

Nominal capacity: 4500 mAh capacity (range 4500-4650 mAh)

26660 battery

26660 battery (3)

Ac internal resistance: 30 m or less Ω type add (PTC)

Charging conditions: as of 4.2 + / - 0.05 V voltage, cut-off current 0.01 C.(note: 0.5 C constant current charging to 4.2 V, constant voltage charging due to the current 0.01 C)

Discharge cut-off voltage: 2.75 V

Cycle performance: 500 times (charging 1 c / 1 c discharge, keep the rate of 70% or greater capacity, 100% DOD)

Maximum continuous discharge current: 13 a

The pulsed discharge current: 15 a, 5 s

Working temperature: charging: 0 ° C ~ 55 ° C;Discharge: - 20 ° ~ 60 ° C C

Storage temperature: - 20 ° C ~ 45 ° C

The battery weight: 92 g (about)

Diameter: 26.2 mm

Height: 65.6 mm

The overcharge performance

Battery charging standards, measuring the battery of the initial state, the battery is normal, 3 C current charging to 10.0 V, then turned to constant voltage charging end to the current 0.01 C.Observe the appearance of the battery.

Results: no fire, no explosion

Discharge performance

After the battery charging standards, measuring the battery status, battery status, normal discharge in 0.5 C to 0 V.Watch battery appearance change.

Results: no fire, no explosion

External short circuit

Battery charging standards, measuring the battery of the initial state, placed in a direct short circuit in the explosion-proof cover is negative (line resistance is not more than 50 m Ω), when the battery temperature down to about 10 ℃ lower than the peak temperature when the experiment is over. Observe the temperature of the battery and the appearance change.

Results: no fire, no explosion

Thermal abuse

After measuring the battery's initial state, battery charging standard, placed in the oven, temperature (5 + 2 ℃)/min rate rose to 130 + 2 ℃ and thermal insulation for 30 min.Watch battery appearance change.

Results: no fire, no explosion

fall

After initial test battery capacity, charging standards, measuring the battery of the initial state, will test the battery by the height of 1 m (low level) the location of the vertical and horizontal free fall to the cement ground, down 2 times.

Results: no fire, no explosion

Heavy shock

A diameter of 15.8 mm steel rods placed in the centre of full battery;Then put the weight of 10 kg of hammer from above 1.0 m high free fall to the battery.

Results: no fire, no explosion

Extrusion test

Batteries on extrusion equipment between two extrusion surface, cylindrical batteries axis parallel to the extruded surface, gradually increase the pressure to 13 kn, keep pressure for 1 min.

Results: no fire, no explosion

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