Beware Of Cold Weather And Lithium Batteries!
An early cold shock hit Bend, Oregon a couple of weeks ago. My chainsaw and batteries were in my truck for several nights of below-freezing temps. Upon trying to use my "cooled" chainsaw, it would only run until the saw blade hit the tree! My first thought was that my chainsaw had failed. I replaced the batteries with warm ones from my shop and the chainsaw worked! I also noticed that my charger would not work with these cold batteries. Not until they warmed to room temperature.
Ultimately, both of the cooled batteries charged and operated the chainsaw. I’m a bit concerned about any long term effect that this exposure to the elements might have on the two batteries. Only time will tell.
Do you have a battery-powered chain saw? Perhaps not! But you may own an electric golf trolley that is powered with a 24 Volt Lithium-Ion battery. The reason I’m sharing my above story is that the same thing might happen if you should accidentally leave your Lithium-Ion battery in your car/truck/SUV in extremely cold weather. The results might be troubling.
Lithium-Ion batteries are a wonderful advancement in battery technology, but they need some tender love and care. Your Cart Tek user manual suggests that you always store your batteries in a cool, dark, dry environment and to avoid extreme temperatures. Avoid both hot and cold extremes as best you can and you will get the best life from your battery.
If your golf course is shutting down for the Winter, remember to charge your Lithium-Ion battery after your last use. Always make sure you see the amber LED on your charger. This is the ‘only’ indicator that your battery is being charged. Periodic charges over the Winter is also recommended(Check every 45-60 days). You should try charging your battery every 3-4 months when not in service. If you are concerned about the battery charge, you can test the battery with a volt/ohm meter or with our battery monitor. Either device will give you the status of the battery Voltage.