I have the original battery from the first gen 20” mower that no longer holds a charge. Is there a buy back program for this?

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Battery no longer holds charge
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Brian Prihoda

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Posted 3 months ago

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k

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Is it still under warranty? You might be able to get a replacement if it is.
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Brian Prihoda

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I believe the batteries have a 3 year warranty if I remember correctly.
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k

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If you bought the batteries Less Than 3 years ago call ego customer support. They should get you a new battery.
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Robby

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Where are you located? It's probably rebuildable. Unless there was a change since the early years, the pack is just a bunch of spot-welded 18650s.
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Blue Angel, Champion

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To get it back to OEM specs you would have to recover the Phase Change Material and heat shrink seal it to the new cells before putting them into the pack. Also, if you were planning to replace every cell it would probably be cheaper to just buy a new one... there are 28 x 2000mAh high-drain cells in that 4Ah pack. ;-)

If you found the one or two cells that were bad it would be viable, but you’d want to be very certain the issue wasn’t in the electronics before putting in the effort and expense. From what I understand, bad cells are extremely rare.
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summetj

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I don't know how the Ego BMS works, but some laptop battery BMS's will enter a "shutdown" state if they detect that the batteries are removed (e.g. in the first stage of the repair) and refuse to operate after that.

The stated goal is to prevent unauthorized repair shops from swapping in "new" poor quality 18650 cells that may not meet original specifications and cause a fire hazard, but it also makes rebuilding the pack yourself more difficult. (You have to do a complicated dance of swapping in the new cells before cutting out the old cells to always keep power to every BMS sense lead so the BMS can't detect that the cells changed out.)
I do not know if the Ego BMS does this or not, but it's something to keep in mind if you attempt to rebuild a pack yourself.
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Brian Prihoda

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Think the battery is like 4 years old. Well just checked the product registration on the site and the purchase was 3/13/2015. I’m s.o.l.
(Edited)