The Solar-Breeze uses a rechargeable Lithium Ion battery that has demonstrated a life span of up to 1,000 cycles or more during testing. As a result, the battery should last for up to two years if the Solar-Breeze is used daily and longer if the unit is used only seasonally. This assumes that owners follow proper guidelines for storage and that batteries are not subject to freezing temperatures.Batteries for the Solar-Breeze are covered by the same warranty and replacement policy as the rest of the unit.
Do the batteries get replaced every few years, or do you need to buy another unit???
How expensive are the batteries to replace?
You may replace the battery yourself if you are handy with tools. Though dealers sell the battery for almost $80 plus shipping and tax, you can get an equivalent battery at hobby shops or on line. This same or similar 7.2 v 5300ma lithium battery can be bought for as little as $15.00 on eBay.