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Black rectangular lithium-polymer battery pack, 65 by 61.5 by 7.8 mm

Cameron & Co

Cameron & Co DS-CS-RMT850SL 4 Ah Li-Polymer GPS accessory

SKU CH-THXC-6E7GR

Replacement lithium-polymer battery delivering 3.7 V and 4000 mAh for select Rand McNally truck GPS units

  • Product typeGPS Batteries
  • Li-Polymer chemistry gives stable 3.7 V output
  • 4 Ah capacity extends truck GPS run time
  • Exact fit for OD7 OD8 PRO II 2 TND-T85 models
  • Replaces original part OP806363 without modification
  • Slim 7.80 mm profile keeps device profile unchanged

Cameron & Co DS-CS-RMT850SL 4 Ah Li-Polymer Battery

This replacement battery powers compatible Rand McNally truck GPS navigators including the OD7, OD8, PRO II 2 and TND-T85 models. It delivers a 3.7 V, 4000 mAh capacity using lithium-polymer chemistry. The unit arrives brand new and is built to match the original OP806363 part specification.

Fits directly into the GPS battery compartment

The cell measures 65.00 x 61.50 x 7.80 mm, matching the factory footprint so the device closes properly. Its 14.80 Wh energy rating supports extended navigation sessions on the road. Installation requires only opening the rear cover and swapping the old pack for this one.

Single black battery supplied ready to install

No cables, chargers or mounting hardware are included because the GPS unit already provides those. The OEM-compatible design means the navigator recognises the cell immediately and reports charge status normally. Buyers needing a multi-pack or an external charging cradle should look elsewhere.

How it compares

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

Price $16.99
Pricier than about 57% of the 716 comparable items (median $14.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-RMT850SL
Product typeGPS Batteries

Questions about this item

How long will the 4000 mAh capacity last on a full day of truck navigation?

The 3.7 V 4000 mAh cell stores 14.80 Wh, which typically powers compatible Rand McNally truck GPS units through a full driving shift before needing a recharge.

Does the Li-Polymer pack run hot or make noise during continuous use?

Li-Polymer chemistry generates minimal heat and no audible noise, so the battery stays quiet and cool even during all-day operation in the cab.

Which Rand McNally models must I already own for this battery to fit?

It fits the OD7, OD8, PRO II 2 and TND-T85 truck GPS navigators that use part number OP806363.

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