Description

Summary of 12V NiMH Battery

Tailored Energy Solution with Superior Density and Customization Options

The 18670 12V 4500mAh NiMH Battery is a high-performance, eco-friendly rechargeable battery designed for devices that require non-standard dimensions and long-lasting power. come with 4/3A (18670) NiMH battery cells, the 12V NiMH battery has high energy density, perform better than traditional NiCd battery on both capacity and safety.

With a massive 4500mAh capacity, it offers extended run time and stable 12V output, making it ideal for specialty industrial, medical, and backup power applications where reliability and compact size are essential.

Parameters

Battery Model: 18670 (4/3A)

Nominal Voltage: 12.0V

Open Circuit Voltage (OCV): ≥12.5V

Rated Capacity: 4500mAh

Minimum Capacity: 4450mAh

Internal Impedance: ≤350mΩ

Cycle Life: ≥500

Standard Charge: 0.1C 450mAh

Fast Charge: 0.5C 2250mAh

Trickle Charge: 0.05C 225mAh

Discharge Cut-Off Voltage: 9.6V

Maximum Continuous Discharge Current: 2C 9A

Rapid Discharge: ≥54 Min

Storage Temperature:

-20-50°C, less than 30 days

-20-40°C, less than 90 days

-20-30°C, less than 360 days

 

Storage Humidity: 65±20%

Self discharge: ≥2700(60%)

1，Standard charge, storage for 28 days at 20℃, standard discharge

2，Standard charge, storage for 7 days at 40℃, standard discharge

Typical Weight: Approx 790g

Over Discharge & Over Charge Test: No leakage nor explosion

Short Circuit Test: Deformation & leakage may occur but no explosion

Vibration Test: △V<0.24V

△Ω<60mΩ

Drop Test: △V<0.6V

△Ω<60mΩ

Battery Cell Performance.

 

🌟 Key Features

⚡ Higher Energy Density than NiCd

The 18670 NiMH battery offers superior energy density, enabling longer operation without increasing size or weight. It’s a safer, more efficient upgrade to outdated nickel-cadmium packs.

🌱 Eco-Friendly and Non-Toxic

NiMH cells are free of heavy metals like cadmium and mercury, making this battery an environmentally responsible choice that complies with RoHS directives.

🔒 Enhanced Safety Performance

This battery provides thermal stability, overcharge resistance, and no memory effect, reducing the risk of malfunction and prolonging battery life.

📐 Rare 18670 Size for Unique Equipment

Unlike common 18650 batteries, the 18670 (4/3A) cell has a slightly longer length, making it perfect for devices with precise space requirements in specialized applications.

🔋 4500mAh High Capacity for Extended Use

Enjoy longer runtime and fewer recharges, improving productivity and power efficiency in devices like portable medical instruments, data loggers, and outdoor sensors.

🛠 Fully Customizable Battery Pack

We offer tailored design services, including:

• Voltage and capacity configuration

• Custom terminals and connectors (e.g., JST, Molex, Tamiya)

• OEM branding and packaging

🧪 Typical Applications

• 🏥 Medical monitoring devices

• 🔧 Industrial instrumentation

• 🚨 Emergency lighting and backup systems

• 🔬 Scientific equipment

• 📡 Remote communication devices

• 🛠 Military-grade field gear

❓ Frequently Asked Questions

Q: What is the main advantage of 18670 over 18650?
A: The 18670 is slightly longer, allowing for higher capacity (4500mAh) while maintaining cylindrical compactness, perfect for devices with tight but tall battery compartments.

Q: Is NiMH safe compared to lithium-ion?
A: Yes — NiMH batteries are chemically stable, non-flammable, and ideal for applications where safety and longevity are key concerns.

Q: Can I customize this battery for my device?
A: Absolutely! We support custom voltage, capacity, shape, wiring, and branding — just send your specifications.

Q: Does it suffer from memory effect?
A: No — modern NiMH cells have virtually no memory effect, allowing flexible charging without capacity loss.