Here are two reviews of nice looking Parkside tools, that are 4 Volt battery powered, insulated electrician screwdrivers. The first video is the version sold few years ago (I have one) and the second video shows a newer more colorful version. Those are great little tools for hobbyist use.
Parkside Cordless Screwdriver 4V PASD 4 B2 Unboxing – Test – Disassembly – LIDL Tools
Parkside VDE Electricians 4V Cordless Screwdriver Review – PASD 4 C3
Those tools come with a selection of bits, but unfortunately there is no No PZ/S bits specifically designed for electrical work.
The other downside of those is that unfortunately they use custom bits that are impossible to find replacements for. You cannot use standard bit or different bits violate 1000V insulation safety ratings. There are also other tools with insulated bits, but unfortunately the bits on this screwdriver are not compatible with other insulated bits on the market.
The different shank size is there intentionally there to avoid to put in regular 1/4″ bits (which could be dangerous when working with live circuits. If you want to use standard bits (when working with non-electrical works), the later video comments offers a solution idea: “Hello, Found a solution! If you insert a TORX 45 long bit 75 mm in there it will work. In the other end ( hex ) you can hammer in a bit adapter insert. Problem solved.” That is if you want to just skip the electrical insulation and safety parts.
Those tools have also quite low torque. They are not suitable to be used as generic screwdrivers. So those electric screwdrivers are not for finishing the job, they are for speeding the process before torking the connections to the specified torque level. It seems they copied the exact specks of the Wiha Speed E which has 0.4 Nm in electric mode and max 8 Nm in manual mode.
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