8- 21700 18650 Lithium Battery Auto Charge/Discharge Capacity Internal Resistance 2.4-in Color Screen DC 5V

8- 21700 18650 Lithium Battery Auto Charge/Discharge Capacity Internal Resistance 2.4-inch Color Screen DC 5V

Features:
1. The blue segment at the upper end is the external discharge terminal, and the lower end has the working indicator of the corresponding .
2.Voltage and current curve display, real-time voltage and current, DC two-wire method to measure internal resistance.
3. U-shaped groove at the bais combined with board, and the fan actively dissipates heat to form a heat dissipation .
4.18650 battery holder using compact battery holder, suitable for flat battery measurement.
5. type: 8 independent s, each unrelated, independent operation, without mutual influence.
6. synchronisation: support 8 s to set up synchronisation, also can set up each individually.
7. Cycle charging and discharging: only support charging-discharging-charging 1 cycle in automatic mode, do not support multe cycles.

Specifications:
Working voltage: DC5V 10A standard bare metal, without power supply, overpressure must machine
Power supply interface: ①: DC5.5 high-current interface, ②: 5V positive and negative welding points
Power supply re protection: re protection, prohibit re power supply
①Automatic mode: program start ~ 4.2V charging stop voltage for charging, charging current is less than the stop current for 30 seconds, the first charging is completed ~ quiescent not charging and not discharging ~ discharge according to the stop voltage setting, the load voltage is lower than the stop voltage for 10 seconds, discharging is completed ~ quiescent not charging and not discharging ~ charging with the re-charging voltage as the stop voltage, re-charging voltage is set to 4.2V, charging current is less than the stop current for 30 seconds, the program is set to stop voltage. When the recharge voltage is set to 4.2V, the charging current is less than the stopping current for 30 seconds, the programme ends when the recharge voltage is not equal to 4.2V, the battery voltage reaches the recharge voltage, the programme ends, the recharging is completed, the programme ends, and the operation of the automatic mode is completed.
②Charging mode: program start ~ charging voltage is set to 4.2V, charging current is less than the stop current for 30 seconds, the programme ends charging voltage is not equal to 4.2V, the battery voltage reaches the charging voltage, the programme ends ~ charging is complete.
③ Discharge mode: programme start ~ load voltage lower than the stop voltage for 10 seconds, programme end ~ discharge complete
④Activation mode: only for professional use, during the use, the shall not leave the field! Forced charging with charging stop voltage, it will not stop automatically, need to end manually.
Charging current: each independently maximum about 1A, and charging current is not adjustable.
Charging stop voltage: 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V total of 6 adjustable steps
Recharge stop voltage: 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 3.6V, 3.7V, 3.8V, 3.9V, 4.0V, 4.1V, 4.2V adjustable in 13 steps.
End current: 100mA, 200mA, 300mA adjustable.
Discharge current: each independently maximum about 1A non-constant current discharge, and discharge current is not adjustable.
Discharge stop voltage: 2.0V, 2.1V, 2.2V, 2.3V, 2.4V, 2.5V, 2.6V, 2.7V, 2.8V, 2.9V, 3.0V, 3.1V, 3.2V, 3.3V, 3.4V, 3.5V, 3.6V, total 17 adjustable.
Standing time: 1~5 minutes adjustable.
Status preview: support 8- status preview on 1 screen
Single- detail display: support
Single- charging and discharging curve display: support
Internal resistance : DC two-wire method, only for the same batch sorting ogy
Heat dissipation mode: active heat dissipation
Overheating protection: Support
Cyclic charging and discharging: only 1 cycle of charging-discharging-charging is supported in automatic mode, multe cycles are not supported.
External test: support, can be discharged through the 2P terminal external, a single single time only and can only support the battery holder or external test in one, can not be used at the same time the battery holder and external battery test.
Battery re connection protection: re connection protection, prohibit re connection of the battery.
Product size: 37×110×310mm
Package size: 60×112×335mm

Package Included:
Package 1:
18650 *1Batteries not included
Crowbar*1
Package 2:
21700 *1Batteries not included
Crowbar*1
21700 Battery Holder*2
Package 3:
21700 Battery Holder*2
Package 4:
21700 Battery Holder*1