Electric cars are designed to run by the use of a battery or 'electric' parts rather than from fuel like gasoline. Electric cars don't pollute like gasoline ones do so that makes them environmentally friendly. I believe in the future of electric cars. But there are some draw backs.
When you store it, make sure the temperature is not too high nor too low. Don't freeze it and storing the unit in a li ion stock hot car or near the radiator is a bad idea as well. Use a sealable bag, charge the battery to about 50% and put it into the fridge between 0 and 5C.
Nickel- Metal Hydride - Ni-MH batteries is considered to be the successor of the Ni-Cd batteries but unfortunately the dreaded memory effect is as bad as well. However as compared between Ni-Cd and NiMH batteries, the latter last longer as compared to its predecessor.
Corded Electric Lawn Mower - If your boyfriend is more on the traditional side and prefers to use corded lawn mowers then this is the one for him. It has a 12 amp that lithium ion batterty stocks enough power for mulching or bagging with a lightweight design which makes it easy to push, maneuver and store. Another useful feature your boyfriend may love is its low-profile design, making it easier to cut grass under hedges or benches!
The Currie line is regarded as generally good, with some limitations. This is a product that would probably be better test ridden and purchased from a cobalt ontario canada dealer rather than an online e-purchase.
If you use a lithium ion battery make sure it doesn't come in contact with other metals, as the ions might be disturbed leading to a defective battery. Jarring a battery by dropping your cell phone can cause damage even if the phone looks unharmed. Extreme weather conditions can also spoil batteries. Heaters, ovens, stoves and other hot items can cause a battery to overheat or melt. As with other electronic equipment, cell phones should never get wet. This directly affects the circuit and the battery and causes them to rust.
Battery chargers for mobile phones are notable in that they come in a wide variety of connector-styles and voltages, most of which are not compatible with other manufactures' phones or even different models of phones from a single manufacturer.