I have 2 drills, 2 saws and a sander all using the same type of battery (so I can interchange the same battery from the other tools) if they run low. I have not had a problem. What’s more, I have a very favourable impression power of the Bosch All 4 battery range. I have had the oldest drill for over 4 years and am especially impressed by the Bosch Uneo. Translate this reply using Google translate.