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Black rectangular lithium-polymer GPS battery, 52.6 by 34 by 5.2 mm

Cameron & Co

Cameron & Co GPS Battery 1000mAh for TND-540 550

SKU CH-1JWW-AAWXX

Replacement lithium-polymer battery for Rand McNally TND-540 and TND-550 GPS navigators, 3.7 V 1000 mAh capacity

  • Product typeGPS Batteries
  • Reliable power for TND-540 and TND-550 GPS units
  • 1000 mAh capacity supports extended navigation sessions
  • 7 V lithium-polymer chemistry delivers stable output
  • Slim 52.60 x 34.00 x 5.20 mm profile fits the original battery bay
  • Replaces OEM part TOP 523450 with 100 % compatibility

Replacement battery for TND-540 and TND-550

This Cameron & Co lithium-polymer cell replaces the original TOP 523450 pack in RAND MCNALLY TND-540 and TND-550 GPS navigators. It delivers 3.7 V and 1000 mAh capacity in a 52.60 x 34.00 x 5.20 mm black housing. The unit is brand new and 100 % OEM compatible. It suits owners needing a direct swap for a depleted internal battery.

Thermals noise and power draw

The Li-Polymer chemistry provides stable 3.70 Wh output with minimal self-heating during normal navigation use. No moving parts mean completely silent operation. Power draw follows the device's own management circuitry without adding extra load. The slim 5.20 mm profile fits the original compartment without forcing the chassis.

What the bundle changes

The package contains only the single replacement cell; no tools, adhesives or software are included. Installation relies on the navigator's existing battery connector and retention. No firmware updates or calibration utilities are supplied. Buyers who need a complete repair kit with opening tools or external chargers should source those separately.

How it compares

Measured against everything we stock in GPS Mounts & Accessories, at today’s prices. Recalculated every night.

Price $11.99
Cheaper than about 70% of the 716 comparable items (median $14.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-RMD550SL
Product typeGPS Batteries

Questions about this item

How do I install the Cameron & Co GPS battery in my TND-540 or TND-550 and what step is often missed?

Open the device, disconnect the old pack, connect the new 3.7 V 1000 mAh Li-Polymer unit matching the 52.60 x 34.00 x 5.20 mm cavity, then reassemble; the step often missed is securing the connector latch fully.

What maintenance or replacement will the DS-CS-RMD550SL battery need later?

The Li-Polymer cell requires no scheduled maintenance; plan to replace it once runtime drops noticeably or the pack swells, typically after several hundred charge cycles.

What limit appears first during sustained GPS navigation with this 1000 mAh pack?

The 3.70 Wh capacity sets the runtime ceiling; under continuous screen-on navigation the pack will deplete before any thermal or voltage limit is reached.

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