Powery Gel Battery Fiamm Fg10451 6v 5ah (replaces Also 4ah 4,5ah), 6v, 5ah/27wh, Lead-acid Battery, Rechargeable, 70mm X 47mm X 107mm, 100% Compatible. New - Battery Accessories & Charger Accessories - AliExpress
Powery KungLong WP12-6S Lead battery compatible with YUASA NP12-6 Model 6V 12Ah, 6V, 12Ah/72Wh, Lead-Acid battery, rechargeable, 150,0mm x 50,0mm x 94,0mm, 100% Compatible. New - AliExpress Consumer Electronics
Amazon.com: Universal Power Group UPG UB645 6V 4.5AH SLA Sealed Lead Acid Battery - also Compatible with Kid Trax Disney Ride on Toy KT1123TR : Automotive
Rechargeable Battery 6 Volt Torch Battery Sealed Lead Acid 4.5AH 6V 4.0 5060228086762 | eBay
Amazon.com: Universal Power Group UPG UB645 6V 4.5AH SLA Sealed Lead Acid Battery - also Compatible with Kid Trax Disney Ride on Toy KT1123TR : Automotive
FEBER - Replacement Battery for FEBER Electric Vehicles for Children, 6V, 4AH (Famosa 800003104) : Amazon.co.uk: Toys & Games
SPS Brand 6V 42Ah Replacement Battery for Light Alarms CE1-5AG