2pcs 3.7V 52Ah battery Ternary lithium 50000mAh for 3s 12V 24V 10s 36V 13s 48V Electric bicycle batteries modification Nickel |

2pcs 3.7V 52Ah battery Ternary lithium 50000mAh for 3s 12V 24V 10s 36V 13s 48V Electric bicycle batteries modification Nickel |

Battery type: power lithium-ion battery
Nominal capacity: 52Ah
Nominal voltage: 3.5V
AC internal resistance: ≤0.8mΩ
Size: 148*133*27mm
Weight: 1130±15g
Maximum charging current: 2C (continuous) 4C (30s)
Charging voltage: 4.2 V
Maximum discharge current: 4C (continuous) 6C (30s)
Discharge termination voltage: 2.8V
Maximum operating temperature range: - 40 °C / + 60 °C
Charging: 0℃～45℃
Discharge: -20℃～60℃
Best Operating Temperature Range:
Charging 15℃～35℃
Discharge 15℃～35℃ 13
stored temperature:
-40℃～45℃ within 1 month
-20℃～35℃ within 6 months
The storage state of the battery is: at 30% SOC state
Appearance and size:
Visual inspection and vernier caliper measurement, the thickness test must be clamped with a tool, the recommended pressure
50N-200N, without clamping the test splint;
No obvious scratches, no leakage.
 Weight: 1130±15g
discharge
a) Short circuit is strictly prohibited.
b) The discharge voltage shall not be lower than 2.0V. c) The discharge temperature range is -20℃-60℃.
d) The recommended optimal discharge temperature is 15℃-35℃, and it is not suitable for long-term discharge outside this temperature range.
5.3 Keep the battery away from children
5.4 Storage
For short-term storage (within 1 month), the battery should be placed in a clean environment with a humidity lower than 65%RH and a temperature of -40℃-45℃
and half full state.
For long-term storage (within 6 months), the battery should be placed in a clean environment with a humidity lower than 65%RH and a temperature of -20℃-35℃
and half full state.
6 Warning
6.1 Before use, you should read the specification in detail and have a deep enough understanding of the warning contents and precautions.
6.2 It is strictly forbidden to overheat the battery; it is strictly forbidden to modify or disassemble the battery; these actions are very dangerous and may cause the battery to catch fire, leak,
explode.
6.3 It is strictly forbidden to expose the batteries to extreme heat or throw them into fire, and do not place the batteries in direct sunlight.
6.4 It is strictly forbidden to directly connect the positive and negative poles of the battery with metal or other wires to form a path, which will lead to a short circuit of the battery.
It may cause the battery to catch fire or even explode.
6.5 It is strictly forbidden to use the positive and negative poles upside down.
6.6 It is strictly forbidden to immerse the cell in water or other conductive liquids, or make it hygroscopic
6.7 It is strictly forbidden to subject the cell to excessive mechanical shock.
6.8 It is strictly forbidden to directly weld the battery, overheating may cause deformation of battery parts (such as gaskets), which will cause the battery to swell,
Liquid leaks, fires and even explosions.
6.9 It is strictly forbidden to use batteries that are squeezed, dropped, short-circuited, leaked and other abnormal problems during transportation.
6.10 It is strictly forbidden to directly contact the shells between the batteries or connect them together to form a path through conductors during use.
6.11 Batteries should be stored away from static electricity.
It is forbidden to use the battery with other primary or secondary batteries, or with different packages, different models or other batteries.
Use with other brands of batteries.
6.13 During use, charging and discharging, or storage, the battery is found to heat up rapidly, emit odor, discolor, deform or otherwise
If the reaction occurs, stop using it immediately and deal with it accordingly.
6.14 If the battery leaks on the skin or clothes, please rinse with water immediately to avoid skin discomfort, etc.