So you're looking for a impact wrench, and you need something that's portable. Electric impact wrenches (most notably cordless ones) are no longer under-powered and over-weight, and there are plenty of reasons why they are better than their air powered cousins.
Be ready for aftershocks. They are usually weaker than the mainshock, but can still be strong enough to do more damage, especially if a building or structure has already been weakened. Aftershocks can come in the following hours days weeks months and even years after lithium-ion batteries the main earthquake!
This is important in outlining the accuracy of battery life left. It isn't much about the battery life as it is with the display. A generic will display i.e. 5minutes remaining or can show the flashing and yet still be able to run for up to 30 minutes. The worst case would be a camera that doesn't at all recognize it. When taking care of your batteries, it is important to make sure that they run fully before recharging them. If the behaves in an odd manner and doesn't last long you may want to repeat the discharge and charge procedure as this may actually lithium ion batterty stocks resurrect your battery.
The Impact evolved into the 1996 EV1. The car was a hit from the start. Celebrities drove the car and provided free advertising. We remember the local TV anchorman driving the EV1 on camera while providing a steady stream of positive comments. Production was limited and the EV could not be cobalt ontario canada bought and paid for. The car could only be leased, but the future looked good for the electric car. 288 of the 1996 version with lead acid batteries were leased.
Deterioration is a function of temperature and charge level. Don't make the mistake of storing the battery fully charged, as that is the state where it breaks the fastest due to heat. Charge it to 40%, take it out and put it like that on the back seat of your car, avoid direct sunlight and preferably put the mini notebook on a firm flat surface while operating it.
2) Avoid deep discharge - When possible, do not allow the battery to go completely dead. Deep discharge will stress its core and will affect its lifespan.
Finally, this tool has provided safety by having a cover over the blade and an electrical braking system. When the stop button is pressed, the blade turns off immediately.