Sangean AM/FM Weather Radio - MMR-88
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Product Information
Full details
The Sangean MMR-88 is an essential tool for outdoor enthusiasts and emergency preparedness kits, providing reliable access to AM/FM radio broadcasts and mobile device charging when grid power is unavailable. Its primary benefit is the multi-source power system—solar, hand-crank, and USB—which ensures the device remains operational during extended outages. Note that while it features a convenient USB power bank function, the 850mAh internal battery capacity is best suited for emergency communication rather than heavy mobile device charging.
All features
| Model Part Number | MMR-88 |
|---|---|
| Brand | Sangean |
Extended Product Information
FAQs
How long does it take to charge via the solar panel?
Solar charging is designed to maintain the battery; depending on direct sunlight intensity, it will take a significant amount of time to reach a full charge.
Can I replace the battery myself?
The MMR-88 uses a specific lithium battery. We recommend contacting authorized Sangean support for battery service or replacement.
Does it play MP3 files?
No, the device does not support MP3 playback; it is designed strictly for radio reception.
What does the 90-minute auto-shut-off do?
This feature automatically turns the radio off after 90 minutes of continuous use to prevent the battery from draining completely.
Is the radio waterproof?
No, the radio is not waterproof. Keep it dry and avoid exposure to heavy rain or moisture.
Troubleshooting
Radio will not turn on or receive stations.
Ensure the internal battery is charged by using the Micro-USB cable or crank the dynamo for at least 5 minutes.
Mobile device is not charging via the USB port.
Ensure the radio has sufficient battery capacity; the USB output will not work if the internal battery is critically low.
Flashlight is dim or blinking.
Verify the flashlight mode setting or charge the unit, as low battery levels may restrict high-power light output.
Pros and Cons
Pros
- Reliable power options for off-grid use
- Versatile lighting modes for signaling
- Compact and lightweight for travel
- Clear digital tuning with station presets
- Emergency buzzer provides an added layer of safety
Cons
- Small 850mAh battery limits total mobile charging capacity
- Speaker output is modest (0.4 W)
- Charging via hand-crank and solar is slow compared to wall power
Setup, Compatibility & Care
To ensure the longest lifespan for your MMR-88, fully charge the lithium battery via the included Micro-USB cable before your first use. The unit is compatible with most mobile devices via USB, though please check your device's power requirements to ensure they match the 5V/0.3A output. For maintenance, keep the solar panel clean from dust and debris to maintain efficiency. If storing the unit for long periods, charge the battery every three months to prevent degradation. Avoid submerging the radio in water, as it is not waterproof, and store it in a cool, dry environment.