Cut-Rate Batteries Battery Compatible with EF-Johnson 587-5100-361

In this review the reviewer looks at the Cut-Rate Batteries replacement for the EF-Johnson 587-5100-361 two-way radio battery and concludes it is a sensible choice for users needing dependable runtime without the OEM price. The bottom line: this battery is for technicians, field crews, and radio owners who want a high-capacity 7.5V 3600mAH Ni-MH pack that broadly matches original equipment performance and carries a 12 month warranty. It consistently meets expectations for daily operational use and delivers stable capacity for routine cycles.

Key Features

• Compatibility: Works with a long list of EF-Johnson and Motorola models so users can replace older packs without swapping radios.
• Capacity: A 3600mAH rating provides extended run time for long shifts or weekends in the field compared with lower-capacity options.
• Chemistry: Ni-MH construction offers reliable discharge behavior and is widely accepted for two-way radio use in professional settings.
• Quality: Sold as brand new and premium quality, it is built to meet the same physical fit and voltage as the original battery it replaces.
• Warranty: The included 12 month warranty gives reasonable protection against premature capacity loss or defects.
• Replacement P/N coverage: Matches numerous OEM part numbers so locating the correct replacement for legacy equipment is straightforward.

Who It's For

This battery is well suited to first responders, security teams, construction crews, and anyone who relies on EF-Johnson or compatible Motorola radios for daily communications. The higher 3600mAH capacity is particularly valuable for users who cannot recharge frequently and need consistent runtime during long shifts.

Users who require the absolute newest battery technology such as lithium-ion light weight packs, or those who need manufacturer-authorized OEM branding for warranty compliance with specific radio service plans, may prefer to look elsewhere. For most field use cases where fit, voltage and runtime matter, this replacement is a practical choice.

Pros & Cons

Pros

• High 3600mAH capacity provides noticeably longer runtime than many standard replacement cells.
• Broad compatibility with EF-Johnson and many Motorola models makes it easy to replace legacy batteries.
• Comes with a 12 month warranty for reassurance against early failures.

Cons

• As a Ni-MH pack it is heavier and has lower energy density than modern lithium-ion alternatives.

Specifications

Brand	Cut-Rate Batteries
Chemistry	Ni-MH
Voltage	7.5V
Capacity	3600mAH
Compatible Models	EF-Johnson 587-5100-361 and listed Motorola XTS/MTP series
Warranty	12 Months

Our Verdict

The Cut-Rate Batteries compatible pack is a pragmatic, cost-effective replacement for users who need dependable 7.5V 3600mAH performance in EF-Johnson and compatible Motorola radios. It delivers solid runtime, broad part-number coverage, and a one-year warranty, making it good value for field crews and legacy radio owners who prioritize reliability over the absolute lightest weight.

Frequently Asked Questions

Is this battery fully compatible with EF-Johnson 587-5100-361?
Yes, it is specified as compatible and designed to match the original equipment voltage, fit and function for that model.

How long is the warranty?
The battery includes a 12 month warranty from date of shipment covering premature capacity loss or defects.

Will this work in Motorola XTS and MTP series radios?
Yes, the listing names compatibility with several Motorola XTS and MTP models and many OEM replacement part numbers.