Vax OnePWR Blade 3 4 5 Pace Genuine Battery 4.0Ah 72Wh 18V Max BV25040 5INR22/71 | eBay
Vax Genuine ONEPWR 4.0Ah Max Battery | 3-Year Warranty | Fits every ONEPWR product | BV25040, Black
Hoover ONEPWR Battery Fast Charger BH05140 for Vacuums - YouTube
VAX ONEPWR™ 4.0Ah Battery and 1.5A Charger Kit
batteries - Repairing a 5-cell Li-ion battery: dead 21700 cells replaced, but BMS still reporting error when charging - Electrical Engineering Stack Exchange
HOOVER ONEPWR Lithium Ion Battery Charger, Compatible with all ONEPWR Lithium-ion Batteries, Rapid Charge Technology, BH05000PC BH05000PC - The Home Depot