I just bought two of these new version of there battery charger because I bought there 12 amp hour battery packs and the standard ones over heat
https://www.harborfreight.com/20v12v...rger58922.html Charger
https://www.harborfreight.com/20v-12...ery-59246.html Battery Pack
https://www.ebay.com/itm/403633842136 Cooling Fan
I put a battery on the battery charger and you can hear the fan struggling to get up to speed at which it is set to
Plus when taking apart the battery charger case the wires are extremely short so the PWM signal wire got ripped off the small circuit board on the fan
So I bought some computer grade cooling fans with longer wires and you can hear the difference in the speed pickup with these fans
But of course the fan connector to charging board is different so I had some computer boards that are from the Windows XP area these boards have a lot of bloated cap on them and they are multi layer boards which are a pain in the rear to deal with so I am using them for parts
https://www.harborfreight.com/20v12v...rger58922.html Charger
https://www.harborfreight.com/20v-12...ery-59246.html Battery Pack
https://www.ebay.com/itm/403633842136 Cooling Fan
I put a battery on the battery charger and you can hear the fan struggling to get up to speed at which it is set to
Plus when taking apart the battery charger case the wires are extremely short so the PWM signal wire got ripped off the small circuit board on the fan
So I bought some computer grade cooling fans with longer wires and you can hear the difference in the speed pickup with these fans
But of course the fan connector to charging board is different so I had some computer boards that are from the Windows XP area these boards have a lot of bloated cap on them and they are multi layer boards which are a pain in the rear to deal with so I am using them for parts
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