Compatible, cost-saving for Invisible Fence collars Meet Perimeter Technologies four-pack batteries, a cost-conscious designed for Invisible Fence receiver collars

This pack covers popular models including R21, R22, R51, and Microlite, letting you swap in a ready-to-use power source without changing your existing setup

Performance you can feel on the collar Inside each battery sits a new and improved Japanese lithium-ion cell lineup, delivering higher energy density while keeping the collar lightweight

The result is a balance of dependable power and comfortable wear for active dogs during backyard training and daily walks

Perimeter Technologies builds with robust components to enhance durability and safety d with standard batteries

When securely sealed in the collar, a tight rubber waterproofing seal helps protect the internals from moisture during rainy days or splashy play

Why this matters Cost-effective option designed to replace existing batteries in compatible Invisible Fence collars

Seamless compatibility with R21, R22, R51, and Microlite models for easy upgrades

High energy density lithium-ion cells more power without adding bulk to the collar

Quality construction supports longer life and safer operation d to typical batteries

Weather-ready waterproof sealing helps maintain performance in outdoor settings

-world use and expectations In everyday life— from morning park runs to backyard training sessions—these batteries are built to perform when it matters

They aim to deliver steady power, minimize downtime, and provide a for households with multiple collars

Note: Benefits described are potential improvements you may experience; actual results vary with usage and collar compatibility

Potentially longer run times between s

Lower total cost of ownership than using brand-name s

Simple, tool- installation to reduce maintenance time

Consistent power delivery that aligns with routine boundary management needs

Bottom line Perimeter Technologies four-pack batteries a practical, cost-aware option for keeping your Invisible Fence system running smoothly

By combining modern lithium-ion chemistry with durable design and a waterproof seal, they stand as a thoughtful choice for busy dog households

FAQ Q: Which collars are compatible with the Perimeter Technologies four-pack

A: R21, R22, R51, and Microlite Invisible Fence receiver collars

Q: What benefits might users notice

A: High energy density lithium-ion cells may extend run time and reduce collar weight for daily use