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Black rectangular lithium-ion battery 45.19 by 33.87 by 6.27 mm

Cameron & Co

Cameron & Co DS-CS-TMR001SL 3.7V 900mAh Li-ion battery for TomTom XXL 540 550 series

SKU CH-8W9S-7P6RY

Lithium-ion replacement battery rated 3.7V 900mAh for TomTom XXL 540 and 550 series devices

  • Product typeBattery
  • Compatible with TomTom XXL 540 and 550 series
  • 7 V 900 mAh lithium-ion cell powers the unit
  • 19 x 33.87 x 6.27 mm fits the original battery bay
  • Replaces OEM part number P11P20-01-S02 directly
  • Brand new Cameron Sino battery, 100 % OEM compatible

Direct replacement battery

This 3.7V 900mAh lithium-ion cell replaces the original TomTom P11P20-01-S02 pack in the XXL 540 and 550 series. It fits the One XXL 540S, Route XL, XXL 540M, XXL 540T, XXL 540TM, XXL 550, XXL 550M, XXL 550T and XXL 550TM units. The black housing measures 45.19 x 33.87 x 6.27 mm.

Sustained navigation runtime

The 0.9 Ah capacity delivers continuous power for extended trips without the voltage sag seen in aged cells. Li-ion chemistry maintains a stable 3.7 V output through the discharge cycle so the GPS stays responsive from start to finish. No memory effect means the battery can be topped up after any journey length.

Upgrade from a depleted original

Install this pack when the factory battery no longer holds a charge through a full day of driving. The 100 % OEM-compatible fit restores the original runtime without soldering or case modification. Buyers who need a higher-capacity cell or a different voltage will not find that option here.

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-TMR001SL
Product typeBattery

Questions about this item

How much power does the 3.7V 900mAh Li-ion cell draw during all-day use?

The battery stores 3.7V and 900mAh capacity; actual draw depends on the TomTom unit's screen brightness and GPS activity, not on the cell itself.

What must I already own to install this DS-CS-TMR001SL pack?

You need a compatible TomTom device such as the XXL 540S, 540M, 540T, 540TM, 550, 550M, 550T or 550TM, plus a small screwdriver to open the battery compartment.

Will this replacement work alongside the original P11P20-01-S02 battery in my older XXL 540?

Yes, it matches the 3.7V 900mAh specification and 45.19 x 33.87 x 6.27 mm dimensions of the original P11P20-01-S02, so the XXL 540 will recognise it normally.

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