EDO Tech 5V 4A 6.5 Ft Car Charger Compatible with Rand McNally TND 750 740 OverDryve 7 8 Pro RV Truck GPS Magnetic Slice Mount
Quick take
This EDO Tech car charger is designed for Rand McNally GPS units that power through the magnetic “slice mount.” It provides 5V at up to 4A (24W max) through a dedicated barrel-connector setup, plus a 6.5 ft heavy-duty cable and an LED power indicator. The big limitation is compatibility, it is not for the OverDryve 7C, and it will not work like a universal USB car charger.
Pros and cons
Pros
- High output for navigation use, rated at 5V/4A (24W max)
- Made for magnetic “slice mount” Rand McNally models, uses a matching barrel connector
- 6.5 ft heavy-duty cable length gives better in-cabin routing flexibility
- LED power status indicator for at-a-glance charging
Cons
- Not compatible with OverDryve 7C
- Not a general-purpose USB charger, it is intended specifically for compatible mount/power inputs
- Only the power cord is included, plan to use it with your existing slice mount and GPS
What buyers think
Buyer-review evidence is broadly positive but concentrated around fit and basic functionality. Several reviews mention that it works well with their Rand McNally OverDryve units and that it restores charging or navigation power when a previous charger had stopped. Other comments focus on the physical fit and that the cable does the intended job without reported problems. Review evidence is limited in areas like long-term durability beyond occasional “works after extended use” mentions, but the overall theme is reliable compatibility and plug-in performance for supported models.
Who this charger is for
This is a good match if you drive or haul and want consistent power for a compatible Rand McNally GPS in the car, RV, or truck, using the magnetic “slice mount.” The higher 5V/4A output is geared toward staying powered during long navigation sessions, not just topping up occasionally.
Key compatibility details to double-check
Before you buy, confirm your GPS model uses the magnetic “slice mount” power style. This charger is intended for these models:
- OverDryve 7 (not compatible with OverDryve 7C)
- OverDryve 7 RV
- OverDryve 7 Pro
- OverDryve 8 Pro
- TND 750
- TND 740
- TND Tablet 85
- OverDryve Pro II truck GPS
- Connected tablet models listed for slice-mount compatibility
If your setup does not use the slice mount charging approach, this may not connect correctly. It also is not positioned as a universal car charger for other devices.
Performance and design, what you get
This charger uses a 12V DC vehicle input and outputs 5V at up to 4A (24W max). It includes a 6.5 ft cable intended to reach comfortably from a power outlet to a dash or mount location. A built-in LED power indicator helps you confirm the charger is on without guessing.
It uses a dedicated barrel-connector approach, which is part of why it is compatible with slice-mount Rand McNally systems, and also why it is not a substitute for standard USB charging.
Pros and cons in real buying terms
Why it’s a strong option for supported Rand McNally users
- Correct power expectations: 5V/4A output is built for in-car navigation power needs.
- Correct physical fit: designed to work with Rand McNally magnetic slice mounts rather than generic USB docks.
- Better cable reach: the 6.5 ft length is helpful for routing around a windshield or dashboard.
Potential downsides to consider before purchasing
- Compatibility is strict: it is not compatible with OverDryve 7C.
- Limited device flexibility: if you need a charger for phones or other USB devices, you likely want a separate universal car USB charger.
- Use-case specific: it is intended to power your GPS and mount setup, not to function as a broad accessory charger.
Verdict
If you own a compatible Rand McNally GPS that charges via the magnetic “slice mount,” this EDO Tech car charger is a practical replacement or spare. The combination of 5V/4A output, a 6.5 ft heavy-duty cable, and a dedicated barrel-connector fit aligns well with long-drive navigation use. Just make sure your model is not OverDryve 7C, and confirm you are using the slice-mount power style so you do not end up with a charger that does not connect properly.
Alternatives: what to consider instead
If you are not in the slice-mount compatibility zone, your best alternative is to choose a charger made for your exact GPS charging port or mount system. For shoppers who need more general in-car charging, consider a universal 12V-to-USB car charger, but only if your Rand McNally model supports USB charging (this charger is not intended as a standard USB option). The key decision factors are matching the power output and matching the physical connection method used by your mount.
FAQs
Is this charger compatible with OverDryve 7C?
No. It is not compatible with OverDryve 7C. It is intended for other OverDryve 7 models that use the magnetic “slice mount.”
What models does it work with?
It is intended for specific Rand McNally GPS models that use the magnetic “slice mount,” including OverDryve 7 (excluding 7C), OverDryve 7 RV, OverDryve 7 Pro, OverDryve 8 Pro, TND 750, TND 740, TND Tablet 85, and OverDryve Pro II (plus listed compatible connected tablet models). If your unit is not part of that slice-mount group, it may not fit or connect correctly.
Does this work as a universal USB car charger?
No. This is a dedicated power cord for the Rand McNally magnetic slice mount system, using a barrel connector and the specific power connection type it requires.
How long is the cable?
The cable length is 6.5 ft, designed for flexible routing from the vehicle’s 12V socket to your GPS mount.
What power output does it provide?
It takes 12V DC input and outputs 5V at up to 4A (24W max).
What’s included in the box?
It includes the power cord only. It is meant to be used with your existing compatible slice mount and Rand McNally unit.
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Specifications
| Product Title | EDO Tech 5V 4A 6.5 Ft Car Charger Compatible with Rand McNally TND 750 740 OverDryve 7 8 Pro RV Truck GPS Magnetic Slice Mount |
|---|---|
| Category | Electronics > GPS, Finders & Accessories > GPS System Accessories > Chargers & Cables |
| Brand | EDOTech |
| Manufacturer | Edo Tech Supply |
| Model Number | YS-CB05340 |
| Color | Black |
| Connector Type | Barrel Connector |
| Compatible Devices | GPS |
| Compatible Phone Models | OverDryve |
| Additional Features | Charging Indicator, Long Cable |
| Input Voltage | 12 Volts |
| Amperage | 4 Amps |
| Total Usb Ports | 1 |
| Wattage | 24 watts |
| Output Current | 4 Amps |
| Output Voltage | 5 Volts |
| Power Source | Corded Electric |
| Current Rating | 4 Amps |
| Portable | No |
| Number of Power Levels | 1 |
| Power Plug | Type A - 2 pin (North American) |
| Number of Concurrent Devices | 1 |
| Current | DC |
| Plug Type | barrel connector |
| Mounting Type | Window Mount |
| Connectivity Technology | USB |
| Specification Met | FCC |
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