NiMH Batteries
NiMH batteries are rechargeable nickel metal hydride batteries used in consumer electronics, industrial equipment, emergency backup systems, cordless devices, RC products, and custom battery pack projects. On this page, you can compare common NiMH battery categories, explore rechargeable cell and battery pack options, and find OEM supply or wholesale supply paths for replacement, assembly, and long-term sourcing needs.
NiMH Battery Product Overview
Compare the main NiMH battery product categories here. You can start with standard rechargeable batteries, loose NiMH cells for pack assembly, wholesale OEM battery packs, or RC battery packs depending on your project needs.
Ni-MH Rechargeable Batteries
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18670A 4200mAh NiMH Battery
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18670A 4500mAh NiMH Battery
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2/3A 1200mAh NiMH Battery
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2/3AA 400mAh NiMH Battery
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2/3AA 700mAh NiMH Battery
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4/5A 2100mAh NiMH Battery
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4/5AA 700mAh NiMH Battery
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43AAA 600mAh NiMH Battery
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43AAA 700mAh NiMH Battery
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43SC 2800mAh NiMH Battery
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44AAA 1000mAh NiMH Battery
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44AAA 1100mAh NiMH Battery
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What Are NiMH Batteries?
NiMH batteries are rechargeable nickel metal hydride batteries. If you need a basic definition first, you can read What Is a Ni-MH Battery? for a simple chemistry and usage overview. A single NiMH cell is usually rated at 1.2V nominal voltage and can be made into common battery formats such as AA, AAA, C, D, SC, 9V, or custom battery packs. For many devices, NiMH batteries are a reusable alternative to disposable alkaline batteries and an environmentally friendlier replacement path for older NiCd batteries.
Why Use NiMH Batteries?
If you are choosing NiMH batteries for product sourcing, replacement projects, or OEM battery pack assembly, the decision is not only about battery size. You also need to check the technical specifications, storage behavior, connector fit, and whether the battery can support repeatable wholesale or OEM supply. For a broader buying explanation, read Why Use NiMH Batteries? before comparing specific models.
Technical Battery Specifications
Compare voltage, capacity range, cell size, discharge behavior, and documentation before selecting cells or packs for your device.
Low Self-Discharge Options
Choose low self-discharge NiMH batteries when devices may sit unused but still need better charge retention during storage.
Connector and Polarity Matching
Check plug type, polarity, wire length, and replacement fit before ordering rechargeable battery packs.
Wholesale and OEM Supply
Source Ni-MH rechargeable batteries for wholesale programs, OEM builds, replacement packs, and long-term supply needs.
Common NiMH Battery Sizes and Formats
NiMH cells are available as individual rechargeable cells and assembled battery packs. If you are unfamiliar with the structure and function of a single cell, see What Is a NiMH Cell? for a detailed explanation. When choosing a size, check not only the battery format, but also voltage, capacity, dimensions, terminal type, connector configuration, and charger compatibility to ensure the correct fit for your application.
AA NiMH Batteries
Common for cameras, toys, remotes, flashlights, and everyday rechargeable devices.
AAA NiMH Batteries
Used in compact electronics, small remotes, wireless accessories, and space-limited devices.
A, Sub-C, 4/5 SC, D, F, and N Cells
Explore specialty NiMH cell sizes commonly used in RC packs, power tools, industrial assemblies, emergency equipment, and OEM battery projects.
Rechargeable D Cell NiMH Batteries
Used in lanterns, emergency backup equipment, large toys, portable radios, and devices requiring extended runtime.
9V Nickel Metal Hydride Battery
Often used in alarms, microphones, test instruments, meters, detectors, and specialty electronic equipment.
Common Applications of NiMH Batteries
NiMH batteries are often chosen when a device needs rechargeable power, stable discharge, and repeat use. You will usually see them in products where disposable batteries are replaced frequently, or where an assembled battery pack is needed for a specific voltage, connector, and battery compartment.
Digital Cameras
Used where stable rechargeable power is needed for repeated shooting, flash use, and portable imaging devices.
Toys
A practical choice for toys that consume batteries quickly and benefit from repeated charging.
Emergency Lighting
Common in backup lighting products that require rechargeable cells or packs for standby operation.
Cordless Phones
Used in replacement packs where voltage, connector, polarity, and housing fit must be checked carefully.
Medical Backup Devices
Suitable for backup and portable medical equipment when stable rechargeable supply and batch consistency matter.
RC Hobby Systems
Used in RC cars, airsoft packs, and hobby electronics that need matched voltage, capacity, and plug type.
Portable Tools
Often used in legacy rechargeable tool packs and replacement assemblies that need defined cell configuration.
Solar Lighting
Used in solar garden lights and outdoor rechargeable lighting where charging behavior and temperature range matter.
NiMH Batteries vs Other Battery Types
If you are comparing battery chemistries, start with the actual device requirement. NiMH batteries are rechargeable, widely available, and often easier to use in standard battery formats. For a deeper comparison, you can continue with the related guides below.
NiMH vs Alkaline
Choose this comparison if you are deciding between rechargeable NiMH batteries and disposable alkaline batteries.
Read NiMH vs Alkaline →NiMH vs NiCd
Use this guide when replacing older NiCd batteries and checking capacity, memory effect, and environmental differences.
Read NiMH vs NiCd →NiMH vs Lithium-ion
Read this if your project is comparing safer standard formats against higher-energy lithium-ion battery systems.
Read NiMH vs Lithium-ion →Charging and Maintenance Tips
NiMH batteries are easy to use, but charger matching still matters. Before charging a loose NiMH cell or battery pack, confirm the chemistry, voltage, cell count, polarity, charger type, and realistic capacity range. For size-specific capacity selection, compare what is the highest capacity AAA NiMH battery and what is the maximum capacity of a NiMH AA battery before choosing replacements or bulk supply models. This helps reduce overcharge risk, reverse charging in packs, and early capacity loss.
Use a NiMH Charger
Use a charger designed for NiMH chemistry, especially for multi-cell packs or higher-capacity batteries.
Avoid Overcharge
Do not keep charging beyond the recommended method or time, especially with simple or unknown chargers.
Store Correctly
Store batteries in a cool, dry place and recharge them periodically if they are kept unused for a long time.
Top-up Charging Is Acceptable
Modern NiMH batteries have much less memory effect than older NiCd batteries, so partial charging is usually acceptable.
OEM and Wholesale NiMH Battery Supply
If you are sourcing NiMH batteries for a product line, repair program, distributor inventory, or OEM project, we can help you confirm the right cell format, pack voltage, connector, wire length, label, and packaging requirement before production.
Private Label
Brand labeling and packaging support for wholesale and distribution.
Shrink Wrap Packs
Pack assembly with defined cell layout, insulation, and outer wrap.
Connector Matching
Support for plug type, polarity, wire length, and replacement fit.
Wire Leads
Custom wire exit direction, length, gauge, and termination options.
Certifications
Documentation support based on project, market, and battery format.
Bulk Production
Batch supply for OEM builds, service programs, and distributor needs.
Stable Supply
Repeatable cell selection and pack configuration for long-term sourcing.
Explore More NiMH Battery Topics
If you are still comparing sizes, replacement options, or battery chemistry choices, these related guides can help you continue from the NiMH battery overview into a more specific buying or selection topic.
AA NiMH Batteries Guide
Compare AA NiMH battery capacity, rechargeable use cases, and bulk supply considerations.
Read More →9V Nickel Metal Hydride Battery
Learn how 9V NiMH batteries are used in meters, alarms, microphones, and OEM projects.
Read More →NiMH Battery Packs
Check pack voltage, connector matching, wire leads, shrink wrap, and custom OEM supply options.
Read More →Best AA Rechargeable Batteries for Bulk Buyers
A practical guide for buyers comparing AA rechargeable batteries for brands, distributors, and supply programs.
Read More →NiMH vs Lithium Batteries
Compare NiMH and lithium batteries by safety, voltage behavior, energy density, cost, and application fit.
Read More →FAQ About NiMH Batteries
Are NiMH batteries still good in 2026?
Yes. NiMH batteries are still practical for rechargeable AA, AAA, C, D, 9V, RC, emergency lighting, cordless phone, and custom battery pack applications where standard formats, safety, and cost matter.
How long do NiMH batteries last?
NiMH battery life depends on cell quality, capacity, charging method, temperature, storage, and usage load. For sourcing projects, check cycle life, self-discharge behavior, and charging requirements before choosing a model.
Can NiMH batteries replace alkaline batteries?
In many devices, yes, but you should confirm voltage tolerance and device requirements. A single NiMH cell is usually 1.2V nominal, while an alkaline cell is commonly 1.5V nominal.
Are NiMH batteries safe?
NiMH batteries are widely used and do not contain cadmium like NiCd batteries. Safe use still requires correct charging, proper storage, matching polarity, and avoiding short circuits or overheating.
What charger is needed for NiMH batteries?
Use a charger designed for NiMH batteries. For battery packs, confirm the pack voltage, cell count, connector, polarity, and recommended charge current before charging.
What NiMH battery sizes are available?
Common NiMH battery formats include AA, AAA, C, D, 9V, SC cells, A-size cells, and assembled battery packs with custom voltage, connector, wire, and layout options.