BATTERY DISCHARGING WHEN LEFT IN MOWER. BATTERY LIGHT REMAINS GREEN WHEN MOWER NOT IN USE. REPLACED BATTERY, HAPPENED AGAIN. ANY IDEAS?

  • 2
  • Problem
  • Updated 2 years ago
  • In Progress
Archived and Closed

This conversation is no longer open for comments or replies and is no longer visible to community members.

4 YEAR OLD EGO LAWN MOWER
Photo of DAVE HARISIADES

DAVE HARISIADES

  • 80 Points 75 badge 2x thumb
  • FRUSTRATED

Posted 2 years ago

  • 2
Photo of Ken

Ken, Champion

  • 73,580 Points 50k badge 2x thumb
Official Response
The light will stay on for awhile when it’s in the mower but should eventually go off. An easy solution is not to leave the battery in the mower.
Photo of (a)Typical Engineer

(a)Typical Engineer

  • 26,632 Points 20k badge 2x thumb
Summary: Seems like a normal condition for the battery to discharge if left installed in the mower.

I have a 20" gen 1 mower, which seems to be operating correctly.  When I leave the battery installed, most times the battery light is not on.  I do seem to recall once that the green light on the battery stayed on for several minutes after I was done mowing, as I was cleaning off the grass.  Most times, I immediately remove the battery so that it can begin to cool off (rather than sitting in the enclosed battery box).  So most times I would not notice if the green light stays on.  I also did a test, installed the battery, turned on the LED work lights, turned OFF the LED work lights, and the battery LED stays ON/green.  This appears to be a normal condition to indicate the battery is in a "green" ready to go status, vs. "red" and needing a charge.

Is your expectation that the green light on the battery should go out after a set amount of time?  Briefly went through the manual, and didn't see anything addressing whether or not the light should or should not go out.  However, the manual does state that the battery pack should be removed for storage:

"STORING THE MOWER
The following steps should be taken in order to prepare the lawn mower for storage.
1. Remove the battery pack from the mower and store it in a cool, dry location."

From an electrical perspective, when the battery pack is installed, I'm pretty sure that there are parasitic losses happening, because as soon as you activate the mechanical key, and then activate the mower bail, the mower will start right up.  To prevent battery discharge, remove the battery from the mower per the manual.
Photo of TK

TK

  • 4,296 Points 4k badge 2x thumb
This does not happen on the blower, as the green light stays off.
Photo of (a)Typical Engineer

(a)Typical Engineer

  • 26,632 Points 20k badge 2x thumb
Checked a few more tools:

ST1500 w/ 2.0 AH battery
Battery goes green as soon as the safety interlock (not trigger) is pressed; goes out after a few seconds.

530CFM blower w/ 2.5 AH battery
Battery LED goes green as soon as blower is turned on; and goes out right away.

PH1400 power head w/ 2.0 AH battery
Battery LED goes green as soon as power head is started; stays green for about 15 seconds, then turns off.

Conclusion: Different tools exhibit different behaviors.
Photo of Blue Angel

Blue Angel, Champion

  • 179,968 Points 100k badge 2x thumb
DAVE, YOUR CAPS LOCK IS STUCK ON. ;-)

In addition to the advice given above, you can keep the battery in the mower without having it connected. If you eject the battery it will still fit beneath the cover without making an electrical connection, and won’t be able to discharge.
Photo of Jacob

Jacob

  • 65,000 Points 50k badge 2x thumb
I think he is experiencing something different.

Dave. Do you have to eject the battery and reinstalled it to get the mower to turn on? If so... You have a problem that I experienced.

This conversation is no longer open for comments or replies.