@Oaktree,
After my 8 YO Toro trimmer seized a piston, replacement cylinder jug, piston and rings approached 100 bucks, so it looked like time to try electric power.
I bought the HF Lynx 40V trimmer.
I have 1/3 acre, about half is grass.
The good...
Battery life is adequate for about 1/2 hr of trimming. I trim until the battery dies, mow during the recharge, then finish trimming what is left over, if needed, after the recharge.
The motor sits over the string spool, so it is well balanced, about 1/2 the weight of the Toro.
Recharge time is 30 to 40 minutes.
The not so good...
It doesn't have the raw power of the Toro, but I expected that.
It takes .055 line, not as robust as I'd like but it works pretty well. Use the blue HF line sold separately. The line that comes with it is kind of wimpy.
The brass grommet the string passes thru lasted about 5 hours of run time. I'm on the hunt for a replacement eyelet and tool, should be a minor problem.
The auto advance doesn't work as advertised, but its a cinch to hand feed the line. There's
A little button on the side of the spool you press to hand feed the line. No big deal since, well, it is electric and lightweight..
Overall despite the limitations, It's enough of an improvement to say I dont miss the gasser.
My shoulder and bad back are thanking me.
HF should sell a second battery and beef up the grommet.