Overview Perimeter Technologies a cost-conscious option for Invisible Fence compatible collars

These batteries are designed to replace the existing pack in a straightforward swap, so you can keep your dog's training and boundary routine uninterrupted

It is a practical upgrade that aims to balance performance with savings, helping you maintain consistent boundary cues during daily walks and training sessions

Think of this two-pack as a , ready-to-install option that works with your current collar system

The goal is to keep your dog secure and engaged in familiar routines without the hassle of pricier OEM s

Compatibility and Technology Compatible with Invisible Fence receiver collars R21, R22, R51, and Microlite

Engineered to drop in as a direct for the current battery in these models

Built with lithium-ion chemistry to deliver strong energy density while keeping the collar lightweight

Durable components and a tight waterproof seal enhance reliability during outdoor use

Because the pack is designed for a direct-fit approach, there is no collar modification required

The balance of capacity and weight is chosen to preserve collar comfort during long walks, training drills, and rest periods

Everyday Benefits May extend time between charges, helping you maintain training routines without frequent downtime

Cost-effective to OEM batteries, reducing expenses over time

Lightweight design minimizes neck weight for daily wear during walks and play

Waterproof sealing helps protect the cell in wet or muddy conditions

In practical use, you may notice fewer interruptions during outdoor activities, especially in humid days or near sprinklers

The pack supports steady performance across seasonal weather and busy training weeks

Quality and Safety The packs use a newer Japanese lithium-ion cell and safeguard features that support stable performance while remaining easy to install

Durable construction aims to withstand daily wear and weather exposure

This combination seeks to maintain balance, reduce bulk on the collar, and support consistent operation in everyday use

With Perimeter Technologies, you gain a dependable, option that aligns with existing Invisible Fence systems and keeps your dog’s boundary routine simple

The emphasis is on reliability, practical performance, and cost awareness for households that value consistent training and safety

FAQ Q: Which receiver collars are compatible with these batteries

A: They fit Invisible Fence receiver collars R21, R22, R51, and Microlite as direct s

Q: Do the batteries require maintenance to maximize life

A: Long-term performance depends on usage and charging, but the design includes a waterproof seal and durable components