Motorola 2 Way Radio Battery - PMNN4477
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Product Information
Full details
This guide is for users of Motorola T62, T82, and T92 two-way radios seeking a reliable spare power source. The Motorola PMNN4477 battery pack offers a convenient 800 mAh NiMH power option that is easy to carry and charge, ensuring your radio stays operational. A potential caveat is that NiMH batteries may require full initial charging cycles to reach optimal capacity.
All features
| Model Part Number | JG.PMNN4477 |
|---|---|
| Brand | Motorola |
Extended Product Information
FAQs
What type of battery technology is this?
This is a Nickel-Metal Hydride (NiMH) battery pack.
What Motorola radios is this battery compatible with?
The PMNN4477 battery pack is compatible with Motorola T62, T82, and T92 two-way radios.
How long does a full charge typically last?
Battery life varies based on usage, radio settings, and signal strength. For the 800 mAh capacity, expect moderate usage to last several hours. Refer to your radio's manual for specific estimates.
Can I use a charger for a different Motorola battery model?
It is recommended to use only the official Motorola charger specifically designed for the PMNN4477 battery and compatible radio models to ensure proper charging and battery longevity.
How should I store a spare battery?
Store the battery in a cool, dry place, away from direct sunlight and extreme temperatures. For long-term storage, it is often advised to leave the battery partially charged rather than fully depleted or fully charged.
What is the best way to maintain the battery's lifespan?
To maintain lifespan, avoid complete deep discharges regularly, and try to perform a full charge cycle once every few months if the battery is not in frequent use. Avoid extreme temperatures.
Troubleshooting
Battery not charging
Ensure the battery is correctly seated in the charger and that the charger is plugged into a working power outlet. Clean the battery contacts and charger contacts with a dry cloth.
Radio not powering on with new battery
Verify the battery is fully charged. Ensure the battery is correctly inserted and the compartment cover is securely closed. Check if the radio is functioning by trying a known good battery.
Short battery life
NiMH batteries may need a few full charge/discharge cycles to reach their maximum capacity. Ensure no features are draining the battery excessively (e.g., high volume, constant transmission). Consider purchasing an additional spare battery.
Pros and Cons
Pros
- Provides essential backup power for Motorola radios.
- Portable and easy to carry.
- Designed for straightforward charging.
- Ensures continued communication when the primary battery is depleted.
Cons
- NiMH batteries can have a slight memory effect if not fully discharged before recharging.
- Requires a compatible Motorola charging solution.
- Capacity may be less than some newer Li-ion battery technologies.
Setup, Compatibility & Care
Compatibility:
- This battery pack is exclusively compatible with Motorola T62, T82, and T92 two-way radios.
Setup:
- Ensure the radio is powered off before replacing the battery.
- Open the battery compartment on the back of the radio.
- Remove the old battery (if applicable).
- Insert the PMNN4477 battery pack, ensuring the contacts align correctly.
- Close the battery compartment securely.
- Connect the radio with the new battery to its compatible charging base.
Care:
- Avoid exposing the battery to extreme temperatures (hot or cold).
- For NiMH batteries, it is generally recommended to perform a full charge cycle periodically to maintain battery health.
- Store the battery in a cool, dry place when not in use for extended periods.
- Use only the official Motorola charger designed for this battery type.