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Perimeter Technologies 4-Pack Replacement Batteries for Invisible Fence Receivers

Perimeter Technologies ★ 4.0/5 · ItemOracle Score Budget

$36 USD
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Perimeter Technologies Four Pack Dog Fence Batteries for Invisible Fence R21 or R51 Receiver Collars (4-Pack)

Replacement four-pack battery for Invisible Fence receiver collars (R21/R22/R51 and Microlite). Provides a compatible, cost-effective option; mixed feedback on fit and longevity from customers

Highlights

  • multi-model compatibility
  • 4-pack value
  • brand-specific replacement

Pros

  • compatible replacement option
  • cost-effective alternative
  • fits multiple collar models

Cons

  • mixed fit compatibility
  • variable battery life

Best For

  • replacement battery for Invisible Fence collars
  • spare batteries for pet containment system
  • backup power for dog wireless fence setup
  • cost-conscious battery substitution
  • reliable supply for multi-collar households

Features

  • Replacement battery compatible with Invisible Fence R21, R22, R51 and Microlite receiver collars
  • Lithium-ion technology delivers energy density while keeping collar weight low
  • Robust components designed for extended durability and enhanced safety
  • Waterproof when sealed inside collar with a tight rubber seal

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