Deal Price:	$17.99 (Reg. $27.99)
Discount:	36% OFF
Instructions:	⚡ Price Drop Clip Coupon directly on the Amazon product page
Verification:	✓ Confirmed Active on August 03, 2026

📋 About This Item

• [Exact Size & Perfect Fit] Standard dimension: 0.63 x 0.63 x 0.13 inches, 0.63 ounces per unit. Voltage: 3V | Capacity: 280mAh. Precisely compatible with MS-4 and MS-5 pet door electronic collars for tight clamping and hassle-free installation.

• [Full Capacity & Long Life] Built with full 280mAh premium cells for steady and durable power supply. Each battery lasts 3 to 4 months under normal use, effectively solving sudden power drain and short battery life issues, delivering consistent long-term performance.