Extended Battery Cover for BT100 Batteries

Secure a compatible ultra-high-capacity BT100 battery to your Motorola SL-Series portable radio with the genuine Motorola PMLN6745A Extended Battery Cover.

This deeper replacement battery door provides the additional space required for select BT100 batteries, including the PMNN4459 and PMNN4468, when installed in compatible SL-Series radios.

The PMLN6745A is specifically designed for the thicker BT100 battery profile. It is not the correct cover for standard BT7X or BT90 batteries. The radio and battery are sold separately.

Key Features

• Genuine Motorola Solutions replacement battery cover

• Designed for ultra-high-capacity BT100 batteries

• Extended-depth design accommodates thicker batteries

• Compatible with select Motorola SL-Series radios

• Supports PMNN4459 and PMNN4468 batteries

• Helps secure the battery inside the radio

• Protects the battery compartment and internal contacts

• Durable molded plastic construction

• Tool-free quick-release installation

• Current revision of Motorola PMLN6745

Extended Cover for BT100 Batteries

BT100 batteries have a thicker profile than standard SL-Series batteries. The PMLN6745A provides the additional internal space necessary to accommodate the larger battery while maintaining a secure fit on the radio.

Compatible Batteries

The PMLN6745A is designed for select BT100 batteries, including:

• PMNN4459 – BT100 2200 mAh Lithium-Ion Battery

• PMNN4468 / PMNN4468B – BT100 2300 mAh Lithium-Ion Battery

Battery availability and capacity may vary by market and revision.

Compatible Radios

The PMLN6745A supports BT100 battery installation in select Motorola radios, including:

• Motorola SL7550

• Motorola SL7550e

• Motorola SL7580

• Motorola SL7580e

• Motorola SL7590

• Motorola SL7590e

• Motorola SL4000

• Motorola SL4000e

• Motorola SL4010

• Motorola SL4010e

Compatibility depends on both the radio and the installed battery. Confirm all model numbers before ordering.

Important Battery-Cover Differences

Motorola SL-Series radios use different covers depending on the installed battery:

• PMLN6745A: BT100 ultra-high-capacity battery cover

• PMLN6001A: BT90 high-capacity battery cover

• PMLN6000A: BT7X standard battery cover

Using the wrong cover may result in a loose battery, an improperly closed radio or a cover that cannot be installed.

Quick-Release Installation

The PMLN6745A uses the radio’s existing quick-release attachment system and can be installed without screws or specialized tools.

Ensure the radio is turned off before removing the cover or changing the battery.

Product Specifications

• Manufacturer: Motorola Solutions

• Model Number: PMLN6745A

• Previous Part Number: PMLN6745

• Product Type: Extended replacement battery cover

• Compatible Battery Family: BT100

• Compatible Battery Models: PMNN4459 and PMNN4468

• Material: Molded plastic

• Color: Black

• Installation Type: Tool-free quick release

• Radio Included: No

• Battery Included: No

• Quantity: One battery cover

Package Includes

• One Motorola PMLN6745A BT100 extended battery cover

The radio, battery, charger and other accessories are sold separately.

When to Replace the Battery Cover

Replacement may be necessary if the existing cover is:

• Cracked or broken

• Missing from the radio

• No longer latching securely

• Warped from heat or impact

• Loose around the installed battery

• Being upgraded to support a BT100 battery

Important Compatibility Information

This cover is designed for specific SL-Series radios using a BT100 battery. Other Motorola radios that also use a BT100 battery may require a different battery-cover model.

For example, the SL300, SL3500e, TLK 100 and EVX-S24 use different covers despite supporting compatible BT100 battery models.

Why Buy from Delmarva Two-Way Radio?

Delmarva Two-Way Radio supplies genuine Motorola Solutions replacement parts backed by knowledgeable product support. Our team can help match the correct battery cover to your radio and battery before your order is placed.