4.8V AA 2000mAh Ni-MH Rechargeable Battery Pack

Q: What is cycle‑life of this 4.8V AA 2000mAh Ni‑MH pack?

≥500 cycles tested following IEC61951‑2:2017 standard under 0.2C charge‑discharge test conditions for assembled battery pack.

Q: What is total internal resistance for 4.8V AA2000mAh battery pack?

≤140mΩ for whole assembled pack, measured at 1KHz AC under fully‑charged status.

Q: Can you customize wires, connectors and heat‑shrink housing for this 4.8V AA pack?

Yes. We support custom lead wires, JST/SM/KET/Tamiya connectors, heat‑shrink tube wrapping and polarity adjustment for OEM projects.

Q: What certificates can you provide for export of 4.8V AA Ni‑MH battery packs?

PPWR, CE, RoHS, REACH, MSDS and UN38.3 shipping documents can be supplied for global export orders.

Q: Are samples available for 4.8V AA 2000mAh Ni‑MH battery pack?

Samples can be arranged for performance validation, buyer shall cover the freight cost.

Description

Full Technical Specifications (WJ‑PACK‑4S‑AA2000)

Parameter Item	Specification
Model Number	WJ‑PACK‑4S‑AA2000
Nominal Voltage	4.8V (4pcs 1.2V AA Ni‑MH cells in series)
Rated Capacity	2000mAh (Minimum 1940mAh)
Nominal Energy	9.6Wh
Cell Configuration	4S‑1P (Four standard AA Ni‑MH 2000mAh pointed‑top cells series‑welded)
Single Cell Dimension (D×H)	Φ14.25mm × 50.25mm
Pack Approx Weight	Approx 114g (without connector)
Whole‑Pack Internal Resistance (1kHz, full charged)	≤140 mΩ
IEC Cycle Life	≥500 cycles (IEC61951‑2:2017)
Max Continuous Discharge Current	4000mA (2C)
Standard Charge	200mA (0.1C), 16 hours
Fast Charge	600mA‑1000mA with ‑ΔV / temperature cut‑off control
Discharge Temperature Range	-20℃ ~ +50℃
Short‑term Storage Temperature (<30 days)	-20℃ ~ +45℃
Pack Cut‑off Discharge Voltage	4.0V (1.0V per single cell)
28‑day Self‑discharge Retention	≥65% capacity @20℃ ambient
Certifications & Shipping Documents	PPWR, CE, RoHS, REACH, MSDS, UN38.3 available

Core Performance Advantages

≥500 IEC standard cycles: Assembled from grade‑A WJ‑H‑AA2000 pointed‑top cells, pass IEC61951‑2‑2017 cycle test for RC hobby and portable industrial equipment.
4S series 4.8V finished AA battery pack: Factory spot‑welded four AA‑2000mAh pointed‑top cells, stable 4.8V rated output for RC receivers and replacement‑device projects.
Strict cell matching process: Capacity, internal‑resistance and open‑circuit voltage sorted before spot‑welding, minimize voltage drift under continuous‑load working conditions.
High‑rate discharge capability: Supports up to 2C continuous discharge, good pulse‑current performance for RC and portable instrument loads.
Wide working temperature: Discharge range from‑20℃ up to +50℃, fit indoor equipment and mild outdoor operating scenarios.
Flexible OEM options: Custom flying leads, Tamiya/JST/SM/KET connectors, heat‑shrink sleeve wrapping, polarity adjustment and private label printing.

Performance Characteristic Curves

1.0C Rate Charging Curves

0.1C‑1.0C Multi‑Rate Charging Curves

0.2C / 0.5C / 2C Discharging Curves

Storage & Self‑Discharge Retention Curves

OEM Custom Battery‑Pack Service

We provide OEM & ODM finished‑pack assembly service for WJ‑PACK‑4S‑AA2000 4.8V Ni‑MH battery. We support grade‑A pointed‑top cell sorting, spot‑weld inter‑cell tabs, different gauge flying leads, multiple industry‑standard connectors (Tamiya, JST‑PH, SM, KET), heat‑shrink tube insulation, custom polarity and private label printing. Suitable for RC‑model replacement, portable instrument upgrade and new‑product‑development projects.

4.8V AA Ni‑MH battery pack assembly and QC workflow

Typical Application Scenarios

This 4.8V AA 2000mAh series Ni‑MH battery pack is widely applied for RC receivers, portable test instruments, wireless control units, medical handheld devices and small standby power modules.

RC receiver power supply Portable test measuring instruments Wireless control equipment Small handheld medical devices Remote‑control transmitters Mini standby power modules

Frequently Asked Questions

Q1: What is cycle‑life of this 4.8V AA 2000mAh Ni‑MH pack?

A: ≥500 cycles tested following IEC61951‑2:2017 standard under 0.2C charge‑discharge test conditions for assembled battery pack.

Q2: What is total internal resistance for 4.8V AA2000mAh battery pack?

A: ≤140mΩ for whole assembled pack, measured at 1KHz AC under fully‑charged status.

Q3: Can you customize wires, connectors and heat‑shrink housing for this 4.8V AA pack?

A: Yes. We support custom lead wires, JST/SM/KET/Tamiya connectors, heat‑shrink tube wrapping and polarity adjustment for OEM projects.

Q4: What certificates can you provide for export of 4.8V AA Ni‑MH battery packs?

A: PPWR, CE, RoHS, REACH, MSDS and UN38.3 shipping documents can be supplied for global export orders.

Q5: Are samples available for 4.8V AA 2000mAh Ni‑MH battery pack?

A: Samples can be arranged for performance validation, buyer shall cover the freight cost.

Manufacturer & Certification Support

Weijiang Power manufactures this 4.8V AA Ni‑MH assembled battery pack with grade‑A original WJ‑H‑AA2000 pointed‑top Ni‑MH cells. In‑house cell‑sorting, spot‑welding and reliability‑testing laboratory support mass‑production and small‑batch OEM customization. Full set export‑ready certification & shipping documents for worldwide customers.

View All Certifications > Factory & Testing Lab Showcase >

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