Reciprocating Saw, Battery
A reciprocating saw can be used for many purposes, but choose one according to your requirements.
Clearing – you don't need a really powerful motor for cutting branches or light materials. A lighter, easy-to-handle reciprocating saw is enough.
Demolition – If you’re going to use the reciprocating saw for larger demolition projects and expect to cut different materials, you shouldn't sacrifice power. More important factors are stroke length and having a saw blade that's suitable for the job. For this purpose, you should also choose a variant that allows you to change the blade easily, as you will need to do it more often. Furthermore, the weight of a reciprocating saw is important as heavier models have fewer vibration issues and are more stable.
The most popular reciprocating saws are now battery-powered. This is good news, because the reciprocating saw is a tool that's good for accessing hard-to-reach places. However, corded versions are a much cheaper alternative and may be suitable if you will only be working near a wall socket.
Some saws feature a pendulum function, which makes cutting easier and quicker. If you will be doing different kinds of tasks, it can be good to go for an adjustable pendulum function. It should not be used when sawing metal, for example.
Need to know a bit more before you deside if a reciprocating saw is the one you need, please check this guide at Toolstop.