Multi-tools with 2 batteries

 

— a spare battery is included with the battery-powered tool (see the relevant paragraph). This feature partially compensates for one of the main drawbacks of such models — the inability to immediately continue working when the charge is exhausted: instead of waiting for a dead battery to charge, you can install a spare battery and continue working (and just put the main battery on charge at this time). Roughly speaking, the presence of 2 batteries allows you to double the operating time without recharging, and you can replenish energy reserves without interrupting work.