1.2V 4000 mAh C Size Cell NiMH Rechargeable Battery

China 1.2V 4000 mAh C Size Cell NiMH Rechargeable Battery, Find details about China Ni-MH Battery Flat Top Cell, NiMH Rechargeable Cell from 1.2V 4000 mAh C Size Cell NiMH Rechargeable Battery

Basic Info.

Model NO.

C size

Installation

Packaged

Rechargeable

Chargeable

Standard Charge

400mA(0.1c)×16hrs

Discharge

800mA(0.2c)to 1.0V/ Cell

Weight

80g

Capacity

4000mAh

Chemistry

NiMH

Terminal Style

Flat Top Cell

Internal Impedance

Approx...20mΩ

Charging Current

3000mA

Trademark

EWT

Transport Package

According to Your Requirment

Specification

Nickel Metal Hydride

Origin

China

HS Code

8507500000

Model NO.

C size

Installation

Packaged

Rechargeable

Chargeable

Standard Charge

400mA(0.1c)×16hrs

Discharge

800mA(0.2c)to 1.0V/ Cell

Weight

80g

Capacity

4000mAh

Chemistry

NiMH

Terminal Style

Flat Top Cell

Internal Impedance

Approx...20mΩ

Charging Current

3000mA

Trademark

EWT

Transport Package

According to Your Requirment

Specification

Nickel Metal Hydride

Origin

China

HS Code

8507500000

Product Desciption

Product Overview

1. Adopt special sealing design and sealing technology, select high-energy battery special materials, and have superior leak-proof performance. The voltage is stable. Adequate capacitance, low temperature resistance and impact resistance. Shock storage period and long service life. The sightseeing is bright and tidy, small in size, light in weight, and does not corrode and rust.

2. Long life: Under normal use, the life is greater than 500 cycles.

3. Smooth discharge curve: When discharging with 0.1C to 100%, the voltage of each battery can still be maintained above 1.2 volts.

4. High adaptability: Any battery pack can be made according to user requirements to meet the requirements of users' products.

5. It is manufactured by advanced technology, with low internal resistance, fast charging and excellent abuse resistance;

6. Low self-discharge; high capacity and stable performance

Description	Unit	Specification	Conditions
Nominal Voltag	V	1.2V
Nominal Capacity	mAh	4000	Standard Charge/discharge
Minimum Capacity	mAh	4000	Standard Charge/discharge
Standard Charge	mA	400(0.1C)	Ta=0~45ºC
Standard Charge	hour	14-16	Ta=0~45ºC
Fast Charge	mA	0.5C	'-ΔV=0~5mV/cell , Timer Cutoff=120%nominal capacity , Temp.Cutoff=55ºC, dT/dt=0.8ºC/min,T1=20±5ºC
Fast Charge	hour	2.4 approx
Trickle Charge	mA	0.03C ~ 0.05C	Ta=0~70 ºC
Standard discharge	mA	800(0.2C)	T1= 20±5ºC Humidity:Max85%
Discharge Cut-off Voltage	V	1.0V
Storage Temperature	ºC	-20~30(Within 1 year	Discharged state Humidity:Max85%
		-20~40(Within 6 months)
		-20~50(Within 1 month)
		-20~60(Within 1 week)
Typical Weight	g	80	unit cell
Open Circuit Voltage (OCV)	V	≥1.25	Within 1hr after standard charge
Internal Impedance (Ri)	mΩ	≤12	Upon fully charge(1kHz) (1kHz)
High Rate Discharge (1C)	min	≥51	Standard Charge,1hr rest before discharge
Charge Retention	mAh	≥2400 (60%)	Standard Charge,Storage:1months,Standard Discharge
Leakage		No leakage nor deformation	Fully charged at 400mA 48 hrs
IEC Cycle Life	Cycle	≥500	IEC61951-2(2003)7.4.1.1
Vibration Resistance		Change of voltage should be less than 0.02V/cell,Change of impedance should be less than 5 milli-ohm/cell	Charge the battery at 0.1C for 14hrs,then leave for 24hrs,check battery before/after vibration,amplitude 1.5mm,vibration 3000 CPM,any direction for 60mins.
Impact Resistance		Change of voltage should be less than 0.02V/cell,change of impedance should be less than 5 milli-ohm/cell	Charge the battery at 0.1C for 14hrs,then leave for 24hrs,check battery before/after dropped,height 50 cm wooden board(thickness 30mm)direction not specified,3 times.

NI-MH Battery FAQ

Q: How many times can a NiMH battery be recharged?

A: Lower capacity rechargeable AA batteries of 1700 up to 2000mAh can be recharged up to 1000 times in overnight slow charge mode, while 2100 to 2400 mAh rechargeable batteries can be recharged up to 600 to 800 times in overnight slow charge mode.

The new higher capacity AA 2500 mAh rechargeable batteries have greater power capacity, but they can only be recharged approx 500 times in the overnight mode. Capacity improvement or quick charging will always decrease the number of cycles. Every cell available on the market above 2100 mAh will have below 1000 charge cycles.

Q: Why won't NiMH batteries work in some applications such as smoke alarms?

A: NiMH batteries self discharge about 1% per day so if used in a low energy consummation or stand-by device, the battery will only last about 90 days before requiring recharge.

Q: What applications are not good places to use NiMH batteries?

A: Any situation where the battery is not used within a 30 day period or low energy draw devices, for example smoke alarms, emergency flashlights, clocks, TV remotes, etc.

1.2V 4000 mAh C Size Cell NiMH Rechargeable Battery

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