"novel8" wrote in message
...
On Aug 6, 4:43 pm, harry wrote:
On Aug 6, 3:13 pm, novel8 wrote:



I bought the Worx edger with the 18volt battery this past April. Each
week i used the edger for about 15 minutes to do my chore and then i
immediately put into the recharger and wait for the green light and
then store it till the following week. All's well until the last 3
weeks where i ignored the chore cause of the hot weather. This morning
I tried to use it and sense in about a minute or two the battery very
weak. So i recharged it, the light turned red as it should and about
15 minutes later the green light came on, so i thought it was fully
charged...it wasn't. This time it last less than a minute. So i
recharged it again and again, it charged about 10 minutes or so, when
the green light came on again. I called repair and told them the
scenario and they said they would send me a new recharger. I called
worx and the guy told me that i should recharge the battery the night
before i intend to use it. The manual says nothing about that. It
worked just fine the way i was using it for about a month and
recharging it. Any ideas? is it the battery? the recharger? I am so
confused on when i should recharge these things.

With some lithium cell technology, you are supposed to completely
discharge the battery before you recharge it. You may have one of
these.http://www.batteryuniversity.com/partone-12.htm

Thanks for the link, but too confusing to this dude. How am I to know
when it reach's 4.20/cell...? I went according to the manual and the
tech support of the company on how and when to recharge.

From what you've described (how long it's been working without an issue) I
doubt that any change in charging methods caused this. I'd go with bad
charger first (only because they offered a new charger so quickly and
because the pack should still have plenty of life). Then I would suspect a
blown cell in the pack from the recent heatwave since it seems to
work/charge a little. Put a voltmeter on the terminals when it's allegedly
fulled charged and let us know what you see. Even a $5 cheapo meter will
do.

--
Bobby G.