Review on KUNLUN 21.6V 4.0Ah V6 Battery Replacement For Dyson DC59 DC62 DC58 SV04 SV03 SV07 SV09 VCT4 V6 Animal Motorhead Absolute Slim 967810-23 Cordless Vacuum Battery by Kathy Morgan

terrible battery quality. They work ok for the first month then the life starts to die out. within 4 mon you are lucky to get 5-7 minutes with the vacuum. within 6 months, 3-5 min tops. i bought 2 both became so weak they would not run the dysan for morend5 min 8 months. I'm in a 2 Bedroom apartment. Small space, do not use it very much. - Maybe 5-10 min every other day and 15 min once per week. Original batteries were fine for several years.Fit and finish is ok, but they use very poor quality batteries. DO NOT BUY.