Compatible with for V7 series vacuum cleaners, like V7 Pro, V7 Trigger, V7 Animal, V7 , V7 Mattress, V7 Absolute, V7 Car+Boat, etc.; Works with v8 animal vacuum 229602-01, v8 absolute vacuum 214730-01, v8 vacuum, v8 vacuum, v8 hand-held series vacuum cleaner, v8 SV10 967834-02 96783402 vacuum cleaner, and v8 animal cordless stick vacuum cleaner. Compatible with for 18V battery lithium-ion Compact Cordless Packs BL1860, BL1850B, BL1850, BL1840B, BL1840,BL1835, BL1845 -400 etc High Output Battery. Recommend to use 4A and above batteries because of the high power for vacuum. Convert for Battery to for V7 V8 battery: Reuse for your batteries and save your money on buy new V7 V8 replacement battery frequently. More powerful than old V7 V8 SV10 SV11 battery, provide longer running time. Made of fireproof ABS material, which provides over-voltage, over-current, overheats and short circuit protection. Diagnostics with indicator light to communicate battery working status.( Note: Please remove