1. Product Overview
This manual provides instructions for the Kastar 1000mAh Ni-MH AAA rechargeable batteries, designed as replacements for various Panasonic cordless phone models. These batteries offer reliable power and are engineered for extended lifespan and environmental responsibility.

Image 1.1: A single Kastar 1000mAh Ni-MH AAA rechargeable battery, showing its capacity and Ni-MH type.
2. Safety Information
Please read and follow these safety guidelines to ensure proper use and prevent damage or injury:
- Do not disassemble, crush, puncture, or short-circuit the batteries.
- Do not expose batteries to fire, high temperatures, or water.
- Use only chargers specified for Ni-MH rechargeable batteries.
- Keep batteries out of reach of children and pets.
- If a battery leaks, avoid contact with skin and eyes. Rinse thoroughly with water and seek medical attention if irritation persists.
- Dispose of used batteries according to local regulations. Do not dispose of with household waste.

Image 2.1: Illustration indicating that Kastar batteries are free from Mercury (Hg), Cadmium (Cd), and Lead (Pb), highlighting their eco-friendly design.

Image 2.2: Diagram showing the internal structure and DBCK steel shell of Kastar batteries, designed to protect against explosion due to overpressure.
3. Setup and Installation
To install the Kastar rechargeable batteries in your compatible Panasonic cordless phone:
- Identify Battery Compartment: Locate the battery compartment on the back or bottom of your cordless phone handset.
- Remove Old Batteries: If present, carefully remove the old batteries. Note their orientation (positive and negative terminals).
- Insert New Batteries: Insert the Kastar AAA Ni-MH batteries into the compartment, ensuring the positive (+) and negative (-) terminals align correctly with the markings inside the compartment. Incorrect insertion can prevent the phone from powering on or charging.
- Close Compartment: Securely close the battery compartment cover.
- Initial Charge: Place the handset on its charging base. Allow the batteries to charge fully before first use, typically 7-10 hours, as recommended by your phone's manufacturer.
4. Operating Instructions
These Ni-MH batteries are designed for optimal performance in compatible cordless phones.
- Charging: Always charge the batteries using the original charging base or a compatible Ni-MH battery charger. Overcharging or undercharging with incompatible chargers can reduce battery life.
- Discharge Cycles: For best performance, allow the batteries to fully discharge occasionally before recharging. This helps maintain battery health.
- Stabilized Voltage: Kastar batteries are designed to maintain a stable voltage during discharge, providing consistent power to your device. They offer a slightly higher voltage (0.1V) when fully charged compared to some standard batteries, which can be beneficial for device performance over time.

Image 4.1: A graph illustrating the stabilized voltage discharge curve of Kastar batteries (black line) compared to other batteries (red line), showing Kastar maintains a higher voltage for longer periods.
5. Maintenance and Storage
Proper maintenance extends the lifespan of your Kastar rechargeable batteries.
- Regular Charging: Recharge batteries when your phone indicates low battery. Avoid leaving them completely drained for extended periods.
- Cleaning: Keep battery contacts clean and free of dirt or corrosion. Use a dry cloth to wipe them if necessary.
- Storage: If storing batteries for an extended period, charge them to about 50% capacity and store them in a cool, dry place. Recharge them every 3-6 months to prevent deep discharge.
- Lifespan: These batteries are designed for up to 1200 charge/discharge cycles.
- Low Self-Discharge: Kastar batteries feature low self-discharge technology, retaining approximately 75% of their charge after 3 years of storage.

Image 5.1: An image highlighting that Kastar rechargeable batteries can be recharged up to 1,200 times, emphasizing their longevity.

Image 5.2: A comparative graph illustrating the ultra-low self-discharge rate of Kastar batteries over time (retaining 75% charge after 3 years) versus general rechargeable batteries.
6. Troubleshooting
If you encounter issues with your Kastar batteries, consider the following:
- Phone Not Powering On:
- Ensure batteries are inserted with correct polarity (+/-).
- Verify the battery compartment cover is securely closed.
- Place the handset on the charging base for at least 30 minutes to ensure initial charge.
- Short Talk Time/Poor Battery Life:
- Ensure batteries are fully charged before use.
- Check if the phone's charging contacts and battery contacts are clean.
- If batteries are very old or have undergone many cycles, their capacity may naturally decrease.
- Battery Not Charging:
- Confirm the phone is correctly seated on the charging base.
- Check if the charging base is properly connected to power.
- Ensure the batteries are Ni-MH type and compatible with your phone's charger.
7. Specifications
| Feature | Detail |
|---|---|
| Battery Type | Ni-MH (Nickel-Metal Hydride) |
| Battery Size | AAA |
| Voltage | 1.2V |
| Capacity | 1000mAh |
| Model Number | MH-24B-AAAJ1000-6 |
| Product Dimensions | 1.75 x 1.2 x 1.2 inches (per battery, approximate) |
| Recharge Cycles | Up to 1200 cycles |
| Environmental Features | No Hg/Cd/Pb (Mercury/Cadmium/Lead) |
8. Compatible Panasonic Cordless Phone Models
These Kastar AAA Ni-MH rechargeable batteries are compatible with the following Panasonic cordless phone models:
- KX-PRD260W
- KX-PRD262B
- KX-PRD262W
- KX-PRL262B
- KX-PRLA20
- KX-PRLA20B
- KX-PRS120
- KX-PRS120W
- KX-PRW120W
- KX-PRW130W
- KX-PRWA10
- KX-PRWA10W
- KX-PRWA13
- KX-PRWA13W
- KX-PRX120W
- KX-PRXA10
- KX-TG1031S
- KX-TG1032
- KX-TG1032B
- KX-TG1032BP
- KX-TG1032S
- KX-TG1033
- KX-TG1033S
- KX-TG1034
- KX-TG1034B
- KX-TG1034S
- KX-TG1035
- KX-TG1035S
- KX-TG1061M
- KX-TG1062M
- KX-TG1063
- KX-TG1064
- KX-TG1212B
- KX-TG155SK
- KX-TG223SK
- KX-TG234SK
- KX-TG235SK
- KX-TG243SK
- KX-TG254SK
- KX-TG263SK
- KX-TG2721AL
- KX-TG2722AL
- KX-TG273SK
- KX-TG294SK
- KX-TG313SK
- KX-TG3600BX
- KX-TG3611BX
- KX-TG3612BX
- KX-TG3620
- KX-TG3634
- KX-TG3634B
- KX-TG3640
- KX-TG3645
- KX-TG3645B
- KX-TG365SK
- KX-TG3683
- KX-TG3711BX
- KX-TG3711SX
- KX-TG3712BX
- KX-TG3712SX
- KX-TG3719BX
- KX-TG3721BX
- KX-TG3721SX
- KX-TG3722BX
- KX-TG3722SX
- KX-TG3811BX
- KX-TG3811JX
- KX-TG3811SX
- KX-TG3821BX
- KX-TG3821JX
- KX-TG3821SX
- KX-TG3822JX
- KX-TG385SK
- KX-TG4011N
- KX-TG4012N
- KX-TG4013N
- KX-TG4021N
- KX-TG4022N
- KX-TG4023N
- KX-TG4024N
- KX-TG4025N
- KX-TG4026N
- KX-TG4031B
- KX-TG4032B
- KX-TG4033B
- KX-TG4034B
- KX-TG4053B
- KX-TG4073N
- KX-TG4074N
- KX-TG4131M
- KX-TG4132M
- KX-TG4132N
- KX-TG4133M
- KX-TG4133N
- KX-TG4134M
- KX-TG4134N
- KX-TG4221
- KX-TG4221N
- KX-TG4222
- KX-TG4222N
- KX-TG4223
- KX-TG4223B
- KX-TG4223N
- KX-TG4224
- KX-TG4224N
- KX-TG4225
- KX-TG4225N
- KX-TG4311BX
- KX-TG4312BX
- KX-TG4321B
- KX-TG4322B
- KX-TG4323B
- KX-TG4324B
- KX-TG4381
- KX-TG443SK
- KX-TG444SK
- KX-TG454SK
- KX-TG465SK
- KX-TG4731
- KX-TG4732
- KX-TG4732B
- KX-TG4733
- KX-TG4733B
- KX-TG4734
- KX-TG4734B
- KX-TG4736B
This list is not exhaustive. Please refer to your phone's manual for specific battery requirements.

Image 8.1: An illustration showing various applications for Kastar batteries, including cordless phones, remote controls, and other small electronic devices.
9. Warranty and Support
For warranty information or technical support regarding your Kastar batteries, please refer to the contact information provided with your purchase or visit the official Kastar website. Keep your proof of purchase for warranty claims.