Rebuilding battery pack using Ikea Ladda 2450mAh in Karcher K55 electric brush - YouTube
Cameron Sino 3000mah Battery 28100010,6.654-118.0 For Karcher 1.258-505.0, 12585050, 1258-5050,k55 Cordless Electric Broom, Kc55 - Digital Batteries - AliExpress
Kärcher Power supply (charger) for K 50, K 55, K 65 | 6.683-244.0 - Kärcher Store Schreiber