Description

Summary of 8.4V 4600mAh NiMH Hump Battery Pack

Small Size, Long Runtime, and Reliable Safety in a AAA NiMH Format

The 2.4V 800mAh AAA NiMH Battery is designed for devices where space is limited but runtime and performance cannot be compromised. Built using AAA-size (14500) NiMH cells, this battery pack delivers higher energy density than NiCd batteries, is cadmium-free, and ensures safe, stable operation over hundreds of charge cycles.

With a compact form factor and 800mAh high capacity, this battery is perfect for small electronics, cordless phones, medical equipment, and portable instruments, providing long-lasting power and reliable performance in tight spaces.

Parameters

Battery Type: Ni-MH Battery

Nominal Voltage: 2.4V

Charge Voltage: 3.0V

Open Circuit Voltage(OCV): ≥5.5V (Within 1 hr after standard charge)

Nominal Capacity: 800mAh

Minimum Capacity: 780mAh

Standard Charge: 0.1C 80mA

Trickle Charge: 0.05C 40mA

Maximum Continuous Discharge Current: 1C 800mA

Internal Impedance(Ri): ≤145mΩ (Upon fully charge(1KHz))

Rapid Discharge: ≥54 Min (Standard charge,30min rest before discharge at 1.0C to 1.0V/cell)

Dimension: 11*21*45mm

Weight: 50g

Connector: SM-2P, Tamiya, Jst or others

Shrink tube: Green, Blue or customize

Application: rc toys, light etc

Relative Humidity: 65±20%

Storage Temperature: -20～35°C

Ambient Temperature: 20±5℃

Standard charge/discharge condition:

Charge: 50mA(0.1C)×15hrs

Discharge: 100mA(0.2C) to 1.0V/cell

Over Charge: No leakage nor explosion (0.1C charge for 1 month)

IEC Cycles Test: ≥500 times (IEC 61951-2(2008)7.4)

Short Circuit: Deformation & leakage may occur but no explosion

After normal charging to full voltage, short circuit for 60 minutes

Vibration Test: ΔV＜0.02

Charge at 0.1C 50mA for 14 hours, then leave for 24 hours. Check battery before and after vibration.

Amplitude: 1.5mm

Vibration: 2500 CPM

Any direction for one hour

Drop Test: ΔV＜0.02

Charge at 0.1C for 14 hours, then leave for 24 hours. Check battery conditions before and after drop on the wooden

board of thickness: 3 cm

Height : 500 mm

orientation is not specified test for three times.

Important: The batteries must be standard discharged before charge

Nimh Battery Cell Curve

1, 0.1C Rate Charging Curve

2, 0.05C Rate Charging Curve

3, Discharging Curve

 

🌟 Key Features

🔋 Higher Energy Density than NiCd

Provides more capacity per unit volume, extending device runtime without increasing battery size.

📏 Compact AAA Size for Narrow Spaces

With AAA (14500) form factor, this pack is ideal for devices with small battery compartments or tight installation areas.

⏳ 800mAh High Capacity

Offers longer operating time between charges, improving productivity and convenience for battery-powered devices.

🌱 Environmentally Friendly & Safe

• Cadmium-free and RoHS compliant

• Non-toxic and recyclable

• Safe chemistry with no thermal runaway risk

🔒 Reliable & Long-Lasting

• 500–1000 charge/discharge cycles

• Low self-discharge when stored

• Stable voltage output during use

🛠️ Customizable to Your Needs

We provide full OEM/ODM support for:

• Voltage & capacity modifications

• Connector & wire customization

• Private label branding & packaging

• Special casing or shrink wrap colors

📱 Typical Applications

• ☎️ Cordless Phones

• 🧪 Medical Monitoring Devices

• 📡 Wireless Sensors

• 📷 Portable Instruments

• 🔦 Mini Flashlights

• 🧸 Small Electronic Toys

❓ Frequently Asked Questions

Q1: Can this replace my 2.4V NiCd battery pack?
Yes — this NiMH pack offers higher capacity and is environmentally safer than NiCd, making it an ideal upgrade.

Q2: Can I get a different connector installed?
Yes — we offer JST, Molex, and custom terminal options, with different wire lengths available.

Q3: Is it safe to use in medical devices?
Yes — with proper certification and a stable chemistry, this battery is suitable for regulated devices.

Q4: What’s the typical runtime for cordless phones?
It varies by model, but the 800mAh capacity generally provides longer talk and standby time compared to standard packs.

Battery model chart

Cell Model	Diameter	Length	Alkaline Weight	Nicd Weight	Nimh Weight
AAAA	8.4mm	40.2mm	6g	10g	10g
4/3 AAAA	8.4mm	67mm		12-13g	13g
1/4 AAA	10.5mm	14mm		2.5-3.5g	2.5-4g
1/3 AAA	10.5mm	16mm		5.5g	5.5g
1/2 AAA	10.5mm	22mm			7g
2/3 AAA	10.5mm	30mm		6-8g	8-9g
4/5 AAA	10.5mm	37mm			11g
3/4 AAA	10.5mm	39.5mm		12g	12g
AAA	10.5mm	44.5mm	12g	10g	13g
5/4 AAA	10.5mm	50mm		14g	15g
1/3 AA	14.2mm	17.5mm		6.5g	7g
1/2 AA	14.2mm	30mm		12g	15g
2/3 AA	14.2mm	28.7mm		13-15g	13-16g
4/5 AA	14.2mm	43mm		20g	22g
AA	14.2mm	50mm	24g	21g	27g
5/4 AA	14.2mm	64.5mm			29g
4/3 AA	14.2mm	65.2mm		30g	30g
7/5 AA	14.2mm	70mm		29g	39g
1/2 A	17mm	25mm		17g	21g
4/5 A	17mm	43mm		26-31g	32-35g
A	17mm	50mm		32g	40g
4/3 A	17mm	67mm		50g	55g
7/5 A	17mm	70mm		44.8g	56g
1/2 SC	23mm	26mm		30g
2/3 SC	23mm	28mm		35g	28g
4/5 SC	23mm	34mm		38g	42g
SC	23mm	43mm		52g	55g
5/4 SC	23mm	49.5mm		65-67g	70g
4/3 SC	23mm	50mm		60g	66g
1/2 C	26mm	24mm		31g	34g
1/2 C	26mm	24mm		31g	34g
3/5 C	26mm	30mm		40g	44g
2/3 C	26mm	31mm		45g	50g
C	26mm	46mm	65g	72g	80g
5/4 C	26mm	58mm		90g	100g
1/2 D	33mm	37mm		81-84g	81g
2/3 D	33mm	43.4mm		98-105g	115g
D	33mm	58mm	135g	105-145g	105-160g
4/3 D	33mm	89mm		140-190g	175g
3/2 D	33mm	90.3mm		195-236g	240g
F	33mm	91.2mm		231g	255g
SF (Super F)	41.4mm	89.1mm		393g	425g
G	32mm	105mm	181g
J	32mm	150mm	272g