I'm not too bad at DIY. Not as gifted as my brother-in-law, perhaps, but not bad, and I do a fair bit of it. You have to, really if you're running a gîte, because it would be too expensive to pay for a pro every time there is a bit of maintenance to be done. I have noticed over the years, that whenever I need a power tool, and if I have a choice, I use a battery-powered one in preference to a mains-powered one. I find them more convenient and easier to use.
But they do have a problem, which is that the batteries need a bit of care if they are to stay in good condition. They need to be stored properly, and recharged every few months or so or else they quickly become useless. This is not too difficult when you only have one to look after, but when you have several different batteries for several different tools, each with its own charger, the job starts to become onerous.
So I started looking for a solution to this problem: a range of tools that all take the same battery, so that even if you have a lot of tools you only have one set of batteries to worry about. Also the batteries have to be lithium technology for better power/weight and easier storage. It took a while for me to find, but I reckon that Ryobi have scored with their One+ range of battery-powered tools. A whole range of battery-powered tools that can all use the same 18 volt lithium battery.
I'm hooked. The range is marketed in France as eco-friendly (two batteries instead of 30, for 30 tools), and it also has emotional appeal arising from obvious efficiency. I bought two batteries, a charger and a shark saw. You need two batteries so you can use one while the other is charging.
I used the shark saw today to kill ivy that was strangling a walnut tree: I sawed a two-inch gap in the ivy trunks, all around the tree. And the tree was at the bottom of my field, out of reach of mains cables. Cool tool. More tool purchases to follow, and I'll flog my other battery-powered stuff at the car boot (vide grenier) or maybe eBay.
What is neat about this from a marketing point of view, is that I'm not, for the foreseeable future, going to buy any other battery-powered tool that isn't made by Ryobi, or that isn't at least compatible with their batteries. Brand loyalty is built-in. I might even buy their shares too.