Storage Batteries 6V 4Ah lead acid battery rechargeable battery Mainly for the LED flashlight, desk lamp, lighting battery - AliExpress
Amazon.com: Eseegoo 6V 4.5AH Rechargeable Sealed Lead Acid (SLA) Battery Replace 6 Volt 4AH 5AH for Exit Sign, Emergency Light, Lantern, Kids Ride On Car,Game Deer Feeder : Health & Household
Amazon.com: Interstate Batteries Power Patrol 6V 4Ah Fire & Security Battery (FAS0905) Sealed Lead Acid Rechargeable SLA AGM (F1 Terminal) Fire Alarms, Security Systems : Health & Household
Ivent Solutions Limited - 6V 4Ah Sealed lead acid VRLA battery, long life, professional-grade quality, high reliabilitydesign, ABS (UL94-HB) case, 60A maximum discharge current, built with super heavy duty grid withhigh performance