On Wed, 27 Jun 2018 20:34:16 -0400
Keith Nuttle wrote:

for many years. I do not use it daily. My use is sporadic, 15 to
20 minutes every couple of months. I have had two batteries in the
about 20 years I have had it. I find that with my usage I need to
recharge the battery every 3 to 4 months.

my experience with two drivers was much different

not holding a charge well and then not taking a charge until it no
longer saw use