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Rectangular black lithium-ion battery pack, 50.11 by 34.52 by 4.50 millimetres

Cameron & Co

Cameron & Co DS-CS-MI777TW 650mAh 3.7V Li-ion battery for Midland 777

SKU CH-1FGT-J9V0P

Replacement Li-ion battery delivers 3.7 V and 650 mAh for Midland 777 PMR446+ two-way radios

  • Product typeAccessories (Battery)
  • Designed for Midland 777 PMR446+ radios
  • 650 mAh lithium-ion cell delivers 2.41 Wh
  • Slim 4.50 mm profile fits the handset
  • 100 % OEM compatible replacement
  • Black finish matches original equipment

Compatible replacement battery for Midland 777

This Cameron & Co DS-CS-MI777TW pack fits the Midland 777 PMR446+ and PB-777 two-way radios. It supplies 3.7 V and .65 Ah in a lithium-ion cell. The black casing matches the original equipment dimensions of 50.11 x 34.52 x 4.50 mm. Buyers needing a different voltage or a larger capacity will need another solution.

Simple drop-in installation with correct orientation

The battery slides into the radio's dedicated compartment and locks with the existing latch. No tools or soldering are required. The only common issue is reversed polarity if the pack is forced in backwards, which prevents the radio from powering on. Users who cannot locate the compartment release should consult the radio manual before applying pressure.

Steady output during extended transmit cycles

The 2.41 Wh lithium-ion chemistry maintains a stable 3.7 V through long push-to-talk sessions without the voltage sag seen in older nickel-based packs. Self-discharge is low, so the radio remains ready after weeks in storage. The pack is not designed for high-drain devices that draw more current than the Midland 777 requires.

How it compares

Measured against everything we stock in Walkie-Talkies & CB Radios, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 90% of the 1,062 comparable items (median $34.99).

Specifications

Product
Brand nameCameron Sino
Model nameDS-CS-MI777TW
Product typeAccessories (Battery)

Questions about this item

How can I confirm the DS-CS-MI777TW battery is working correctly after installing it in my Midland 777?

After fitting the battery, power on the radio and verify it transmits and receives on PMR446+ channels; a full charge should deliver the rated 3.7 V and 650 mAh capacity during use.

What comes in the box with the Cameron & Co DS-CS-MI777TW, and do I need any extra parts to use it?

The package contains one 3.7 V 650 mAh Li-ion battery (model DS-CS-MI777TW); no additional components are required — it slots directly into the Midland 777 / PB-777 radio.

Which capacity version of the DS-CS-MI777TW should I choose for my Midland 777 two-way radio?

This model is offered in a single 650 mAh / 2.41 Wh configuration (3.7 V), which matches the original PB-777 specification for the Midland 777 PMR446+ radio.

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