2 of 3 people found the following review helpful
Old battery revived,
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This review is from: CTEK Multi MXS 10 10A 12V 8-Stage Battery Charger Conditioner (Automotive)
I have reconditioned three batteries that have been in use for 12 months. I connected it to a battery that hasn't been used for 4 years. The first time I connected it the battery warning light came on at stage 5 showing battery could not hold charge. The next day I thought I would give it a try again. This time it went to the end of the recon cycle 'woopee' I now have a another standby battery. It is still holding the charge a week later. I would definitely recommend this product.