Cut-Rate Batteries Battery Compatible with EF-Johnson 587-5100-370

In this review the Cut-Rate Batteries replacement pack for the EF-Johnson 587-5100-370 stands out as a practical, lower-cost alternative for users who need dependable runtime for legacy two-way radios. The bottom line: this is for technicians, emergency services, and radio users who require a durable, high-capacity 7.5V 3600mAH Ni-MH pack that claims compatibility with a broad range of Motorola and EF-Johnson models. Performance-focused buyers will appreciate the premium cell selection and rugged housing that are emphasized throughout the product details.

Key Features

• High capacity: The 3600mAH cell count delivers extended runtime between charges for long shifts or extended field use.
• Ni-MH chemistry: Offers stable discharge characteristics and broad temperature tolerance for two-way radio operation.
• Wide compatibility: Explicitly compatible with many Motorola and EF-Johnson models, reducing the need to track down original parts.
• Rugged construction: High impact ABS and polycarbonate housing improves durability against drops and daily wear.
• Quality contacts: Resistance welded gold plated contacts are intended to maintain low-resistance connections for reliable performance.
• 12 month warranty: A one-year free replacement warranty provides basic protection against early defects.

Who It's For

This battery is aimed at professionals and hobbyists who operate radios such as Motorola XTS and EF-Johnson series and need a high-capacity replacement without sourcing original equipment packs. It fits users who value a robust housing and tested cell quality to keep radios running through long shifts or field operations.

It is less appropriate for those who require fast-charge lithium options or a manufacturer-branded pack with proprietary warranties; anyone needing a different chemistry or official OEM labeling should look elsewhere.

Pros & Cons

Pros

• High 3600mAH capacity delivers noticeably longer runtime compared with many standard packs.
• Compatibility list covers many Motorola and EF-Johnson part numbers, making it a flexible replacement option.
• Durable ABS/polycarbonate housing and gold plated contacts improve longevity and connection reliability.
• Includes a 12 month replacement warranty for peace of mind after purchase.

Cons

• Ni-MH chemistry is heavier and charges slower than modern lithium alternatives, which may be a limitation for some users.
• Does not carry OEM branding, so agencies that require original manufacturer parts may not accept it.

Specifications

Chemistry	Ni-MH
Voltage	7.5V
Capacity	3600mAH
Compatible Models	EF-Johnson 587-5100-370; Motorola XTS, MTP, COSMO lines
Construction	High impact ABS and polycarbonate housing
Contacts	Resistance welded gold plated
Warranty	12 months free replacement

Our Verdict

The Cut-Rate Batteries replacement for EF-Johnson 587-5100-370 is a sensible value choice for users who need extended runtime and rugged construction without OEM pricing. For field technicians and radio operators who prioritize capacity and proven Ni-MH reliability, it offers strong performance and compatibility, making it a cost-effective spare or replacement for many Motorola and EF-Johnson radios.

Frequently Asked Questions

Is this battery compatible with Motorola XTS radios?
Yes, the listing states compatibility with multiple Motorola XTS models and related part numbers; check your radio model against the compatibility list before purchase.

What is the warranty period?
The battery includes a 12 month free replacement warranty from the date of shipment.

What chemistry is used and how does it affect use?
This is a Ni-MH pack, which gives stable discharge and tolerance for field temperatures but will be heavier and charge slower than lithium alternatives.