Ni-Cd 2/3AA batteries offer compact, high‑drain power for solar lights, DIY projects, and emergency devices. This guide covers five reliable options that fit the 2/3AA form factor, focusing on 1.2V chemistry with capacities around 300–400mAh. Each entry highlights compatibility, key features, and practical usage tips to help you choose the right cells for your devices and projects.
| Product | Brand | Voltage | Capacity | Notes |
|---|---|---|---|---|
| Zsolarigt 2/3AA 400mAh | Zsolarigt | 1.2V | 400mAh | Leak-free Ni-Cd, fits shorter-than-AA lights |
| 4 Pack 2/3AA 400mAh NiCd | Zsolarigt | 1.2V | 400mAh | Pre-charge guidance included for solar lights |
| Teneyuuo 2/3AA 300mAh | Teneyuuo | 1.2V | 300mAh | Pre-charged 30% for transport |
| Ni-CD AA300mAh 2.4V Battery Pack | Battery Hawk | 2.4V | 300mAh | Emergency/exit light replacement |
| elxjarcell 2/3AA 400mAh | elxjarcell | 1.2V | 400mAh | Flat top with solder tabs for DIY packs |
These selections emphasize genuine Ni-Cd chemistry, proper sizing for 2/3AA devices, and practical features such as leak resistance, pre-charge notes, and ease of replacement in solar lights or compact electronics. When choosing, verify your device’s exact dimensions and connection method to ensure a safe, reliable fit.
Zsolarigt 2/3AA 400mAh Battery — Shorter Than AA
The Zsolarigt 2/3AA battery combines a compact footprint with a 400mAh Ni-Cd capacity, making it a solid fit for solar lights and landscape fixtures that demand consistent power in a smaller form. Its 1.2V nominal voltage aligns with most solar lighting chemistries, and the design emphasizes leak resistance for longer device life. This option is suitable for replacement in lights that explicitly require the shorter 2/3AA size while delivering reliable current in cooler or high-drain conditions.
- Size: 1.18 × 0.55 inches (30 × 14 mm)
- 1.2V Ni-Cd chemistry
- Leak-free design with secure power retention
- Compatible with multiple 2/3AA devices
4 Pack 2/3AA 400mAh NiCd Rechargeable Batteries
This four-pack provides a cost-efficient option for solar-powered lights requiring quick replacements or periodic refreshes. The 2/3AA size is slightly shorter than standard AA but shares the same diameter, enabling easy installation in compatible fixtures. The batteries are designed for leak resistance and long-term storage, with a practical approach to pre-charging before first use in solar or low-drain devices.
- Size: 1.18 × 0.59 inches
- 1.2V Ni-Cd chemistry
- Leak-free construction for safe operation
- Pre-charge guidance for solar lights
Teneyuuo 2/3AA 300mAh Ni-MH Solar Battery
The Teneyuuo 2/3AA cells deliver 300mAh capacity at 1.2V, designed for garden lights and solar-powered devices with compact form factors. Note that these are Ni-MH chemistry, which can offer low self-discharge characteristics and reliable discharge performance. They are pre-charged to about 30% for shipment, with a recommendation to fully charge before initial use to maximize capacity from the start.
- Size: 1.18 × 0.59 inches
- 1.2V Ni-MH chemistry, 300mAh
- Low self-discharge and pre-charged for transport
- Ideal for solar garden lights and compact devices
Ni-CD AA300mAh 2.4V Battery Pack
This Ni-Cd battery pack is designed for emergency and exit lighting, offering a 2.4V configuration with a 300mAh capacity. The higher voltage variant suits devices that require a little more headroom in energy delivery during peak loads. It is a straightforward replacement option for compatible fixtures and can be integrated into pack assemblies where 2.4V is compatible with the device’s circuitry.
- Type: Ni-Cd, 1.2V per cell, pack at 2.4V
- Capacity: 300mAh
- Emergency/exit lighting replacement
Sabuly 2/3AA 300mAh Ni-Cd Replacement Battery
The Sabuly replacement battery is a 2/3AA Ni-Cd cell rated at 300mAh and 2.4V, suitable for compatible 2/3AA x 2 packs and solar devices. It emphasizes compatibility with common 2/3AA configurations and can serve as a practical upgrade for legacy toys, lights, and gadgets that rely on this compact battery size.
- Voltage: 2.4V, Capacity: 300mAh
- 2/3AA form factor with reliable Ni-Cd chemistry
- Suitable for 2/3AA x 2 configurations in solar or lighting devices
(8-Pack) 2/3AA 600mAh Ni-MH Battery with Tabs
This eight-pack provides a higher capacity Ni-MH option (600mAh) for demanding devices, with tabs for easy integration into custom packs. While not Ni-Cd, it demonstrates the alternative chemistry commonly used in 2/3AA formats and illustrates the trade-off between capacity and chemistry in real-world applications like RC devices and tools. Verify compatibility with your device’s charging profile before use.
- Voltage: 1.2V per cell; 600mAh capacity in Ni-MH
- Tabs for easy soldering and pack assembly
- Broad application in tools, toys, meters, and RC devices
Elxjarcell 2/3AA Ni-Cd 1.2V 400mAh with Tabs
The Elxjarcell 2/3AA Ni-Cd battery features a flat top with solder tabs and a 400mAh capacity, ideal for DIY projects and solar-powered gadgets. Its compact dimensions—27.9mm by 14mm—make it a versatile choice for custom battery packs and quick replacements in compatible devices such as emergency lights, shavers, and small electronic builds.
- Voltage: 1.2V, Capacity: 400mAh
- Flat top with solder tabs for easy integration
- Commonly used in solar lights and DIY projects
An Additional Look: 2/3AA 600mAh Options
While many 2/3AA devices favor Ni-Cd chemistry for older designs, Ni-MH and mixed chemistries are prevalent for newer builds. When selecting a replacement, assess device compatibility, charging method, and whether a tabbed top is needed for soldering into a pack. The 2/3AA form factor balances compact size with a practical voltage supply for low- to mid-drain devices such as garden lights, flashlights, and remote sensors.
Buying Guide
- Size and fit: Confirm metric dimensions (approximately 1.18 inches tall and 0.55–0.59 inches in diameter) to prevent fit issues in solar lights and fixtures labeled as 2/3AA.
- Chemistry: Ni-Cd batteries provide robust performance in some legacy devices but may have memory effects and lower energy density than Ni-MH. Ni-MH variants offer higher capacity but may differ in charging behavior.
- Voltage and capacity: Most 2/3AA cells run at 1.2V per cell. Packs configured for higher voltages (like 2.4V) should align with device requirements to avoid over-volting.
- Pre-charge and storage: Some batteries ship pre-charged or partially charged; plan a full initial charge to maximize usable capacity. For solar lights, pre-charged cells can help immediate operation after installation.
- Tabs and pack compatibility: If building custom packs, choose flat-top or tabbed designs to simplify soldering and wiring. Ensure the device’s circuit tolerates tab connections and any added resistance from wiring.
- Life cycle and replacement strategy: Ni-Cd cells typically offer durable cycles in outdoor or rugged use; Ni-MH may offer longer overall life in some environments but require proper charging control to avoid memory effects.
- Safety and disposal: Properly recycle spent Ni-Cd and Ni-MH cells. Do not mix chemistries in a single device’s pack, and follow local regulations for battery disposal.
Across these options, selecting a battery that matches your device’s size, chemistry preference, and charging scheme will help maintain reliable operation in solar lights, emergency gear, and DIY electronics. For best results, verify device compatibility with the specific battery model and consult the device’s user guide before replacement.