Archived from the Tools In Action forum (Dewalt). This thread is read-only.
I have a 20v Dewalt blower (DCBL720P1) that works great. I just bought a trimmer that came with a 9Ah Flexvolt battery. I assumed I would be able to use this in my blower as well. However the FV battery does not fit inside the battery housing on the blower. There are two small (1-2mm) rails on the bottom of the battery guard / tool rest that get in the way (see picture). My question – is there a reason for this, or was it just a design oversight? Could I trim down those rails a bit to allow the battery to fit, or am I asking for trouble if I do that? The only potential issue I can think of is that the battery would extend beyond the “foot” a couple of millimeters so when you set down the tool it would rest on the battery. I have not been able to find a compatibility chart that addresses this.
I had your exact same situation. What I found is the 9ah will actually fit in the blower although it’s tight and takes a little flexing but it does go. I think it’s just a design oversight and I’ve never had any issues running the blower with the 9ah. Then again I’m just a homeowner that uses the blower to clean up my driveway, sidewalk and patio so I’m not draining a battery in a single use.
DCBL720 is an old design that predates the Flexvolt tool line. Some of the new FV batteries are much larger as you have found. Dewalt now also sells a FV blower.
Thanks, both. I think I will just shave off that ridge with a Dremel and use it.