Kastar 4-Pack Replacement Battery for Honeywell 300-03866 / LCP500-4B / LYNXRCHKIT-SHA / OSA214 — Compatible with ADT Honeywell Lynx Plus, Lynx 5100, Lynx 5200

Keep your Honeywell or ADT Lynx alarm system running reliably with this Kastar high-capacity 4-pack replacement battery. Built to supply consistent, powerful output, these cells extend runtime and help your alarm panel maintain optimal performance. Battery Specification: Battery Type: Ni-MH; Battery Voltage: 7.2V; Battery Capacity: 3700mAh; Battery Dimensions: 3.94" x 2.68" x 0.68" (100.80 x 68.00 x 17.20mm). Durability & Cycle Life: Kastar applies a mix-protection additive to the cathode to reduce material degradation during charging and discharging, extending usable life to as many as 1200 cycles. Low Self-Discharge Design: An embedded sealed structure enlarges the crystal lattice to create more room for hydrogen, which reduces self-discharge so these batteries retain charge longer than typical cells. Safety & Environmental Features: These Ni-MH cells are eco-friendly and free of Hg/Cd/Pb. The DBCK steel shell adds robust protection against overpressure-related explosion, improving safety during use and storage.