EcoRenovator - View Single Post - Reviving a free, dead 12V cordless Black & Decker mower

MetroMPG · 05-24-16, 12:52 PM

The salvage mower runs again!

Hard to believe it's on its 6th season.

But it's definitely not happy this year. So far I've only mowed 3 times, and I'm sagging the voltage well below safe levels to get the job done in 2 cuttings (front... overnight recharge .... rear).

I've always used the guideline of not dragging a 12v battery below 10.5v under load to avoid battricide. But I'm seeing ~9.x volts this year if I want to get the job done. I expect that'll kill the batteries before too long. We'll see!

However, since I got the mower, a new source of cheap, used 12v batteries has shown up in town in the form of an electric bicycle & scooter shop. I may go see what he has available. He even offers a 30 day exchange if the used one he sells doesn't work.

05-24-16, 12:52 PM	#104
MetroMPG Infrequent noob Join Date: Aug 2008 Location: 1000 Islands region, Ontario, Canada Posts: 402 Thanks: 37 Thanked 20 Times in 19 Posts	year #6! The salvage mower runs again! Hard to believe it's on its 6th season. But it's definitely not happy this year. So far I've only mowed 3 times, and I'm sagging the voltage well below safe levels to get the job done in 2 cuttings (front... overnight recharge .... rear). I've always used the guideline of not dragging a 12v battery below 10.5v under load to avoid battricide. But I'm seeing ~9.x volts this year if I want to get the job done. I expect that'll kill the batteries before too long. We'll see! However, since I got the mower, a new source of cheap, used 12v batteries has shown up in town in the form of an electric bicycle & scooter shop. I may go see what he has available. He even offers a 30 day exchange if the used one he sells doesn't work. __________________ . To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.