3400mAh Battery for gpsmap 496 GPSMAP 276 GPSMAP 276c GPSMAP 296 GPSMAP 396 GPSMAP 376 GPSMAP 376C GPSMAP 378
Quick take
This 3400mAh lithium-ion replacement battery is built for select Garmin GPSMAP models, including GPSMAP 496, 276, 276c, 296, 396, 376, 376C, and 378. Buyers generally report it restores usable runtime for older units, but the fit can be tighter or looser than the original, sometimes requiring careful tab adjustment or a small spacer to keep it secure.
Pros and cons
Pros
- Designed for multiple GPSMAP models (not a universal battery).
- Rated at 8.4V and 3400mAh (28.56Wh), with a compact form factor and low weight.
- Buyers commonly report the battery works as a replacement and can “bring back” GPS units.
- Includes guidance to charge before first use, which may help battery health.
Cons
- Physical fit may require gentle modification, like bending the locking tab, or adding a small piece to help it stay seated.
- Not compatible with version 5.70 or above (device firmware limitation).
- Because it is model-specific, checking the exact GPSMAP compatibility matters before buying.
What buyers think
Buyer-review evidence is consistent on two practical points: compatibility and fit. Multiple buyers describe the battery working well after installation, including cases where it revived older GPSMAP devices. The more recurring theme is that the battery can feel like it does not seat correctly at first, often because the plastic locking tab needs gentle adjustment or because the fit can be slightly loose until the battery is positioned correctly.
Key specs and compatibility
This replacement battery is specified as lithium-ion, rechargeable, and rated at 8.4V with 3400mAh capacity (28.56Wh). Its listed dimensions are 77.00 x 49.25 x 21.50mm, and it weighs about 190g (note: product data also appears to list a different weight value on the page, so treat weight as approximate and focus on the model compatibility).
Compatible Garmin GPSMAP models (as listed): GPSMAP 276, 276c, 296, 396, 376, 376C, 378, GPSMAP 496, GPSMAP 495, GPSMAP 478, EGM478, plus several part-number and code references (including 010-00543-00 and 010-00543-00-related items).
Firmware note: It is also described as not supporting version 5.70 or above, so confirm your device software version if you are unsure.
How to think about performance and battery life
Capacity is the headline number shoppers look for, and this one is listed at 3400mAh (28.56Wh). That suggests it is meant to match the power expectations of the compatible GPSMAP lineup rather than being a “higher capacity” experiment. In practice, replacement batteries typically work best when they restore the same power profile as the original pack, which aligns with the way buyers describe the unit coming back to life after installation.
Fit and installation: the real buying consideration
The most important practical factor here is seating and retention. Several buyers report that the battery may appear like it will not fit initially, but they were able to resolve it by gently adjusting the plastic locking tab.
What to do before you install
- Check your GPSMAP model against the compatible list, and verify you are not on a firmware version that is excluded (version 5.70 or above).
- Plan for careful handling if the locking tab feels like it is preventing full seating. Go slowly to avoid stressing the plastic.
- Follow the charging guidance to let the battery charge first before expecting full performance (the listing advises charging for a few hours initially).
Pros and cons (summary)
- Best for: Owners of Garmin GPSMAP models listed above who need an on-device replacement battery.
- Not ideal for: Buyers who want a universal battery for other Garmin devices, or anyone whose firmware version is 5.70 or above (per the stated limitation).
- Main tradeoff: While it generally works as a replacement, the physical fit may require extra attention to get a secure, proper lock-in.
Verdict: is this 3400mAh battery worth it?
This battery is a solid option if you have one of the compatible GPSMAP units and your current battery is no longer holding up. The spec sheet (8.4V, 3400mAh) supports that it is built for the device lineup, and buyer feedback suggests it commonly restores functionality. Just expect that installation may require careful adjustment for the battery to sit and lock securely, and confirm the firmware limitation before you buy.
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FAQ
Does this battery work with Garmin GPSMAP 496?
It is listed as compatible with GPSMAP 496, along with several other GPSMAP models.
What are the key battery specifications?
It is specified as lithium-ion, rechargeable, rated at 8.4V, with 3400mAh capacity (28.56Wh). Listed dimensions are 77.00 x 49.25 x 21.50mm.
Is it hard to install?
Installation is straightforward for some buyers, but fit can be tight at first. Some buyers report gently adjusting the locking tab, while others have added a small spacer when the fit felt loose.
Does it support all firmware versions?
The listing notes it does not support version 5.70 or above, so check your device software version if you are unsure.
How should I charge it when I first get it?
The guidance provided is to charge the battery for 2 to 3 hours after receiving it, which is intended to help improve battery life.
Specifications
| Product Title | 3400mAh Battery for gpsmap 496 GPSMAP 276 GPSMAP 276c GPSMAP 296 GPSMAP 396 GPSMAP 376 GPSMAP 376C GPSMAP 378 |
|---|---|
| Category | Electronics > GPS, Finders & Accessories > GPS System Accessories > Batteries |
| Brand | SCESMIA |
| Manufacturer | C S |
| Number of Batteries | 1 Nonstandard Battery batteries required. |
| Battery Cell Type | Lithium Ion |
| Battery Capacity | 3400 Milliamp Hours |
| Voltage | 8.4 Volts |
| Reusability | Rechargeable |
| Unit Count | 1 Count |
| Battery Weight | 114 Grams |
| Antenna Location | GPS |
| Battery Cell Composition | Lithium Ion |
| Recommended Uses For Product | GPS |
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