View Single Post
  #2   Report Post  
Posted to alt.home.repair
Robert Green Robert Green is offline
external usenet poster
 
Posts: 4,321
Default 18v L-Lo battery problem

"Anthony" wrote in message
...
I got this battery last summer, all went fine and after season being
over over for using it, put it in my colder/cooler basement during the
past 2 seasons, as I was instructed.


I'm confused. Last summer #= two seasons. How old is the battery? How
many trime cycles? I've looked at the Worx and the battery seems quite
small for the job. It may already be at the end of its useful life.

A month ago, i recharged it for
the first time this season and all went fine. After using it, i
recharged it again as instructed...This has worked fine for 3 times
( weekly )..now yesterday i tried to use it again after a week, after
the usual recharging and it started briefly and stopped it kept doing
that each time i depressrf the "on" button. Could someone tell me
what, if anything i did wrong before i ever have to buy another one?
BTW, this was used on the Worx trimmer...a very fine trimmer but
sadly the batteries are a joke.


Got a voltmeter? It sounds like one of the cells in the Lith-ion pack has
gone bad. Not an unusual occurrence. I saw an ad for the Worx trimmer just
the other day - shortly after I bought a Toro with a lead-acid battery.
Looks far more functional than the Toro but reviews I read said because of
the extra features (shrub guard and vertical mode trimming wheels) it became
very hard to hold after a short while? Did you notice that?

Have you checked with Worx about the battery? My Roomba Dirtdog has on
board charging and battery monitoring circuitry that sometimes gets
"confused" and will not operate correctly until you perform a battery
conditioning "ritual" to get it back to operating condition. Maybe Worx
tech support has a similar recommendation.

But a voltmeter is the first place to look. Even if the unit read full
voltage, it may not have enough actual power to drive the device. I would
determine what the proper voltage should be and then test the battery on a
fairly high current drain (for 12VDC lead acid cells I use an old car
headlight - you might have to find a different piece of test equipment
depending on how many volts) to see if it can deliver both the voltage and
the current required to power the trimmer. I just got fooled that way with
my cordless mower. The battery read good but failed under load. Symptoms:
The mower would spin for a second and stop.

--
Bobby G.