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Black rectangular Ni-MH two-way radio battery with rounded edges, 124 by 56 by 20 mm

Centenex Electronics

Centenex Electronics DS-CS-MCT251TW 7.5 V 2500 mAh Ni-MH two-way radio battery

SKU CH-X02C-XSBG7

Ni-MH two-way radio battery rated 7.5 V 2500 mAh, compatible with Motorola CT150, CT250, CT450, GP308, GP88s, MTX8250, P080 and PRO3150 models

  • Product typeAccessories (Battery)
  • Delivers 2.5 Ah capacity for extended talk time
  • Ni-MH chemistry provides reliable rechargeable power
  • 5 V 2500 mAh rating matches original specifications
  • Fits Motorola PMNN4017 PMNN4018 and compatible models
  • Compact 124.00 x 56.00 x 20.00 mm design ensures secure fit

Compatible Motorola radios

This Centenex Electronics DS-CS-MCT251TW battery replaces Motorola part numbers PMNN4017, PMNN4018, PMNN4018AR, PMNN4018H, PMNN4019AR, PMNN4020, PMNN4021 and PMNN4053. It fits the CT150, CT250, CT450, CT450LS, GP308, GP88s, MTX8250, P040, P080 and PRO3150 two-way radios. The pack is brand new and built to OEM specifications. It is not for users whose radios require a different voltage or connector layout.

Ni-MH chemistry and capacity

The nickel-metal hydride cell delivers 7.5 V and 2500 mAh, storing 18.75 Wh of energy. Internal resistance remains low during typical transmit and receive cycles, so the pack runs cool and does not generate audible noise. Self-discharge is modest when the radio sits on standby between shifts. No active cooling or external power circuitry is required.

Sustained transmit behaviour

During long push-to-talk sessions the voltage holds steady thanks to the 2.5 Ah rating, preventing the sag that cuts range on weaker packs. Heat builds slowly and stays within the cell’s normal operating envelope without a fan. The black casing measures 124.00 x 56.00 x 20.00 mm, matching the original footprint so the radio still fits its holster. Users needing higher capacity or lithium chemistry must choose a different pack.

How it compares

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

Price $50.99
Pricier than about 69% of the 1,062 comparable items (median $34.99).

Specifications

Product
Brand nameCentenex Electronics
Model nameDS-CS-MCT251TW
Product typeAccessories (Battery)

Questions about this item

How do I install the DS-CS-MCT251TW battery in my Motorola CT250?

Power off the radio, slide the battery pack into the rear cavity until the latch clicks, then power on. The step often missed is ensuring the gold contacts align before pressing.

What maintenance will the 7.5 V 2500 mAh Ni-MH pack need later?

Store at about 40 % charge if unused for weeks, and cycle fully every few months to prevent capacity loss.

What limit appears first during a long shift with the 18.75 Wh battery?

Talk time drops as the Ni-MH voltage sags under load; expect reduced range before the pack is fully empty.

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