Storing Lithium batteries

It that "battery pack"?

They like to be a human habitat temperature before use. Otherwise, no problem as long as in a battery assembly/pack. If the cells have a problem and leak, it won't damage the tool. If outside of the tool, protect the contacts to prevent an inadvertent short.

Bob Wilson

 

I treat all my batteries like paint cans. Not in the garage where they freeze. I have a special cabinet in the storeroom of the basement that never gets below 60 degrees or above 80 due to the hot water heaters and HVAC system in there. I always pull my batteries out of the device and cover the exposed contacts with paper tape.

 

I live in a moderate climate. middle of NC. 5 to 105 degrees at the extremes over 15 years but probably no more that 15 days at either extreme.

I have had simultaneously up to 5 batteries on chargers and several attached to string trimmers, blowers, hedge trimmers. Several different brands (currently EGO) I charged some inside the house in a laundry room 12 feet from my bedroom.

Some older ones I charged outside in an unheated garage. The ones outside were much older and lower voltage (and in fact have now been disposed of for the higher voltage ones).

I now keep a battery on the blower. Two on inside chargers. Two chargers, 4 total 56v batteries.

One pad, two cell phones, one portable computer. All charged and generally kept inside. Three old similar I should get rid of. Gotta remember to wipe them.

Now 4 garage door openers. All kept outside in or near the garage.

Some 15 years experience.

Never an issue. A suspect a lawyer wrote that cover with tape bit. I'd worry more about getting adhesive on the contacts if I did that.

 

Does the tool have a true mechanical on/off switch, the type that completely cuts off power?

Or is it an 'electronic' switch, the sort that has some electronic logic behind it to control power? This type is continually drawing a small amount of power to keep the digital logic for the switch alive, so slowly but continuously drains the battery. Some devices do this with truly extremely low battery drain, less than the battery self-discharge. But others are not as well designed, and drain the battery too fast for extended storage. Their batteries really ought to be removed.

Or, the manual's battery removal advice might be just legal CYA.

 

^ That.
A saw with the blade removed isn't much of a saw.