Used gtech hand held vacuum battery pack. Double your cleaning time with an additional battery. Professional-grade 22V Lithium-ion battery. One 4 hour charge delivers up to 20 minutes of cordless cleaning.* A short 1-hour charge will deliver a burst of additional runtime Compatible with: - MULTI MK2 (ATF036) (ATF059), MULTI MK2 K9 (ATF037), POWER FLOOR MK2 (ATF038), POWER FLOOR MK2 K9 (ATF039) and more
eBay