Review on Elefly 21.6V 4.5Ah V6 Battery Replacement For Dyson V6 Battery, Compatible With Dyson DC59 DC58 DC61 DC62 DC72 DC74 SV03 SV04 SV09 V6 Animal Motorhead V6 Slim V6 Absolute V6 Cordless Vacuum Cleaner by Joshua Overacre

Easy to replace. So far replacement seems to be charging fine and have not noticed any issues after a week of use. Typically we use the vacuum until the battery dies (approximately 15 - 20 minutes of max power use). Quick to recharge and be ready to go again. The filters that came with battery were a bit squished, but I went ahead and put it in the vacuum--have not noticed any issues with airflow or vacuum capability.