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Comentado en los Estados Unidos el 5 de julio de 2024
I had a dead 40V battery, and after watching some online videos on how to fix it, I bought this unit. It easily converted the 12V my power supply was putting out to 35 V. It helped in resetting the battery so that it charged easily and quickly once it was on it's proper charger. Before using this to bump-charge the battery it was showing as a bad battery. This helped to get it over the hump and it now a fully operating 40V battery.
Christopher Graham
Comentado en Canadá el 18 de noviembre de 2024
Works as advertised
The Box
Comentado en Canadá el 28 de octubre de 2024
Merci bon produit 👍🏼
Jim T
Comentado en los Estados Unidos el 21 de septiembre de 2024
based on other reviews, I decided to order two of these. As warned, one did fail to powerup. Inconsistent placement of heat sinks between the two and bent over capacitors on the bad one seem to indicate a manufacturing issue. The one that worked was capable of adjusting 12v input to over 35v - I didn't try higher. Reported failure and was sent a replacement for no additional cost - increased my overall rating as a result of good customer service.
Danny M Calfee
Comentado en los Estados Unidos el 28 de mayo de 2023
I watched a tutorial on YouTube to reclaim Ryobi 40 volt battery. I followed a link and purchased this. It did exactly as promised and was able to renew battery and save about $130 over purchasing new battery, and will be able to preform this on future problems.
Angel
Comentado en México el 5 de abril de 2021
Funciona a la perfección
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