Battery Compatible with Motorola NNTN4437B - 7.5V 3600mAH Ni-MH

In this review the reviewer tested the Battery Compatible with Motorola NNTN4437B to see if it delivers dependable runtime and compatibility for professional two-way radio users. The bottom line: this replacement packs a high-capacity 7.5V 3600mAH Ni-MH cell chemistry that is aimed at crews who need longer shifts between charges and a reliable drop-in replacement for a long list of Motorola and TETRA models. It is a straightforward, brand new premium quality pack with a 12 month warranty and the single biggest reason to buy is its stated compatibility with original equipment and broad replacement part coverage.

Key Features

• High capacity: The 3600mAH rating provides extended run time compared with lower capacity packs so radios last longer through a workday.
• Exact form fit: Designed as a compatible replacement for the NNTN4437B so it fits Motorola XTS and MTP series radios without modification.
• Durable Ni-MH chemistry: Nickel-metal hydride cells offer stable performance and predictable discharge characteristics for radio use.
• Wide model compatibility: Works with multiple Motorola XTS, MTP and other listed models so fleets with mixed radios can standardize on one spare pack.
• 12 month warranty: The included warranty gives buyers coverage for defects and a measure of confidence in purchase.

Who It's For

This battery is intended for professional users of Motorola and compatible two-way radios who need dependable, higher-capacity replacements for field use - security teams, event staff, facility maintenance, and first responders who rotate spares. It is best where radios see heavy daily use and a 3600mAH pack reduces mid-shift swaps.

Shoppers who require manufacturer-labeled OEM packs, proprietary battery authentication, or lithium-based fast-charge options should look elsewhere; this is a Ni-MH compatible replacement focused on value, broad model fit, and a 12 month warranty rather than premium OEM branding or cutting-edge cell chemistry.

Pros & Cons

Pros

• Higher 3600mAH capacity extends run time compared with smaller packs.
• Explicit compatibility with many Motorola XTS, MTP and TETRA models simplifies fleet spares.
• Comes brand new with a 12 month warranty for peace of mind.

Cons

• Ni-MH chemistry is reliable but heavier and slower to charge than modern lithium options.

Specifications

Our Verdict

The Battery Compatible with Motorola NNTN4437B is a practical, cost-conscious choice for teams that need a reliable 7.5V 3600mAH Ni-MH replacement pack that fits a wide range of Motorola and compatible radios. It is good value for users who prioritize longer runtime and broad model compatibility, while buyers seeking the lightest weight or fastest charging chemistry should consider lithium alternatives.

Frequently Asked Questions

Will this battery fit my XTS or MTP radio?
Yes, the pack is listed as compatible with many Motorola XTS and MTP series models and replaces the NNTN4437B and similar part numbers.

How long is the warranty?
The battery includes a 12 month warranty from the date of shipment to cover defects.

What kind of chemistry does this pack use?
This is a Ni-MH (nickel-metal hydride) battery rated at 7.5V and 3600mAH.