Honeywell Home LYNXRCHKIT-SHA 24-Hour Backup Battery for LYNX Touch L5210 and Internal GSM Radio

7.2VDC 3700mAh rechargeable battery pack designed for wireless security system control panels. Provides extended backup power for longer runtime than standard backup batteries, especially when paired with cellular alarm communicators. High-capacity nickel chemistry supports eco-friendly recycling. Proprietary battery size ensures optimal fit and reliable performance. Delivers consistent 7.7V DC output to power your security device safely. Rechargeable design outlasts disposable alternatives on a single charge, reducing replacement frequency and long-term costs. Replace aging batteries to maintain continuous backup protection for your security system.