NiMH battery cells, its full English name is Nickel-Metal Hydride battery cells. It is a rechargeable battery cell featuring a nickel hydroxide positive electrode and a hydrogen-absorbing alloy negative electrode. NiMH battery cells have a nominal voltage of 1.2V and are characterized by their eco-friendliness, absence of memory effect, low self-discharge rate, and high safety.
Classification of NiMH Battery Cells
NiMH battery cells are categorized based on various factors, including model, capacity, physical appearance, and connector type. Below, we will guide you through the different types of NiMH battery cells, enabling you to select the product best suited to your specific needs.
Model and Capacity
The model designation serves as the most intuitive classification for NiMH battery cells, directly determining their physical dimensions and specifications. Common models include AAA, AA, A, SC, C, D, and F. To accommodate a diverse range of devices, a variety of specialized models—such as 1/3 AAA, 2/3 AAA, 4/5 AAA, 5/4 AAA, 7/5 AAA, 2/3 AA, 4/5 AA, 7/5 AA, 2/3 A, 4/5 A, and 7/5 A—are available in addition to the standard types.
Once the model has been determined, one can proceed to select the capacity of the NiMH battery cells. Capacity dictates the amount of electrical energy the battery cells can store; for battery cells of the same type, a higher capacity translates to a longer duration of continuous power supply.
Appearance and Connectors
NiMH battery cells of the same model and capacity also exhibit slight differences in appearance—primarily regarding the connectors.
Button Top:
The positive terminal features a distinct, raised metal cap, making its appearance virtually identical to that of standard alkaline dry cells. These NiMH battery cells are specifically engineered as direct replacements; they fit perfectly into the vast majority of consumer-grade battery compartments—such as the AA or AAA slots found in remote controls, wireless mice, and children’s toys—thereby enabling a truly “buy-and-use,” seamless replacement experience.
Flat Top:
The positive terminal features an extremely flat surface, devoid of any protruding cap. Flat-top NiMH battery cells typically serve as industrial-grade core cells, primarily intended for assembly into battery packs via welding. Due to their capless design, these cells can be stacked tightly together; they are connected in series or parallel using nickel tabs via spot welding to form various standard or custom-shaped battery packs, finding widespread application in medical devices, cordless power tools, and energy storage systems.
Tabs/Wires:
Some NiMH battery cells come from the factory with pre-welded metal pins or lead wires. Designed specifically for end-of-line assembly, these cells eliminate the need for subsequent spot-welding processes, allowing them to be plugged directly into circuit boards or connectors. They are commonly found in the small-batch production of customized electronic products, model kits, and automated equipment.
The above outlines the classification of NiMH battery cells—the essential first step in selecting the right model. If you are unsure which type to choose, please feel free to contact us; we will assist you in finding the perfect match.
Applications of NiMH Battery Cells
NiMH battery cells offer highly flexible application methods, which can be broadly categorized into two main directions: serving as a direct, one-to-one replacement for primary (non-rechargeable) batteries, and being assembled into battery packs of specific specifications.
Direct Replacement
Button-top NiMH battery cells can be used instantly—just like standard AA or AAA batteries. When utilized in high-drain devices such as camera flashes, digital cameras, smart door locks, wireless microphones, and game controllers, these NiMH cells not only provide a continuous and reliable power supply but also result in significant long-term savings on battery replacement costs. This is particularly true for low self-discharge models, which retain their charge even after sitting idle for six months to a year—thereby completely dispelling the traditional misconception that “rechargeable batteries are inconvenient to use.”
Assembling the NiMH Battery Pack
Flat-top NiMH battery cells equipped with solder tabs can be configured in series and parallel arrangements to form battery packs of varying voltages and capacities. These packs are widely utilized in:
Medical Equipment: Backup power sources for portable blood pressure monitors, patient monitors, and infusion pumps;
Emergency Lighting: Fire emergency lights and safety exit signs;
Robotic Vacuums & Vacuum Cleaners: Replacement power battery packs;
RC Models: Power battery packs for remote-controlled vehicles, boats, and aircraft;
Solar Energy Storage: Garden lights and standalone photovoltaic systems;
Industrial Instrumentation: Multimeters, gas detectors, and surveying equipment.
Whether you are an everyday consumer, an electronics manufacturer, or a repair service provider, NiMH battery cells—available individually or in packs—provide a stable and reliable power source for your devices.
Diverse Series of NiMH Battery Cell Characteristics
LSD – Low Self-Discharge
Low self-discharge series of NiMH battery cells retains over 85% of its charge even after being fully charged and stored for one year. They are particularly well-suited for devices with intermittent usage patterns—such as smart door locks, remote controls, blood pressure monitors, infrared thermometers, and emergency flashlights. If you desire NiMH battery cells that offer the same “ready-to-use” convenience as alkaline batteries, low self-discharge series is the ideal choice.
High Drain / Power Series
This series of NiMH battery cells features lower internal resistance, enabling the instantaneous discharge of high currents. They are widely applicable in electric toys, power tools, airsoft guns, and power sources for starting model aircraft. For any device requiring a powerful surge of instantaneous current, high-rate NiMH battery cells should be the preferred choice.
High Temperature / Wide Temp
These NiMH battery cells are specifically engineered for demanding temperature environments, capable of operating stably over extended periods at high temperatures of 70°C—or even up to 85°C—while also delivering exceptional performance in low-temperature conditions. They are primarily utilized in applications such as outdoor lighting, automotive emergency call modules, sensors deployed in high-temperature industrial zones, and oilfield exploration instruments. Unlike standard batteries—which are prone to leakage or rapid degradation when exposed to high heat—this high-temperature-resistant series ensures long-term reliability.
Additionally, there is the Standard General Series, which strikes a balance between capacity and cost, making it suitable for general consumer electronics. By mastering these classifications, you can quickly identify the most suitable NiMH battery cells for any device.
NBCELL nimh battery cells
Given the varying quality of NiMH battery cells available on the market, selecting a trustworthy supplier is paramount. NBCELL specializes in the long-term R&D and supply of NiMH battery cells, offering a comprehensive product line that includes low self-discharge, high-rate, high-temperature-resistant, and standard series cells. These products are available in various form factors and packaging options, including flat-top, button-top, and tabbed configurations.
We provide: brand-new, Grade A battery cells with genuine capacities—free from inflated specifications; rigorous sorting based on internal resistance and voltage consistency; professional battery pack welding and assembly services; and flexible support for both small-batch trial runs and large-scale mass production. Whether you require high-quality individual NiMH battery cells or are seeking customized NiMH battery pack solutions, we are fully equipped to meet your needs.
We welcome inquiries from prospective clients at any time; based on your specific equipment and application scenarios, we will recommend the most suitable NiMH battery cell solution for you.
The following product information is provided for your reference:
Model | Nominal Capacity |
AAA | 300~1300mAh |
AA | 600~2600 mAh |
A | 2100~2500 mAh |
C | 3800~5000 mAh |
D | 6500~10000 mAh |
F | 13000~15000 mAh |
SC | 1300~3300 mAh |
1/4AAA | 80~200 mAh |
1/3AAA | 120~180 mAh |
1/2AAA | 240 mAh |
2/3AAA | 200~350 mAh |
4/5AAA | 450~500 mAh |
4/3AAA | 950~1000 mAh |
5/4AAA | 700~750 mAh |
7/5AAA | 900~1000 mAh |
1/3AA | 300 mAh |
1/2AA | 500 mAh |
2/3AA | 400~750 mAh |
3/4AA | 800 mAh |
4/5AA | 1100 mAh |
4/3AA | 1800~2100 mAh |
7/5AA | 2100 mAh |
1/3A | 450 mAh |
2/3A | 900~1100 mAh |
4/5A | 1800~2100 mAh |
4/3A | 2800~3600 mAh |
7/5A | 2500~3800 mAh |
1/2SC | 800 mAh |
4/5SC | 1800~2200 mAh |
1/2D | 4000 mAh |
4/3D | 12000~13000 mAh |
Product information is subject to change; please refer to the actual product for specific details.