ProCORE 18V 12.0 Ah battery

The ProCORE 18V 12.0 Ah battery is a battery manufactured by Bosch for 18 volt Bosch Professional power tools.

The battery pack contains fifteen 3.6 volt 21700 Lithium Ion cells with a capacity of 4.0 Ah each placed in three series of five to produce 18 volt.

According to Bosch it is the highest capacity 18 volt battery pack for tools in the world. At the moment of writing, in January 2021 this still seemed to be true.

It also is an exceptionally large and heavy battery pack making it less usable in situations where the weight of the battery can contribute to operator fatigue.

Availability

The battery is available world wide but under two different names.

In North America Bosch uses the names "CORE18V PROFACTOR " instead of PROCORE 18V and this battery has the model identifier. On the sides it has the text "PROFACTOR EXCLUSIVE CORE 18V 12.Ah"

Exterior

ProCORE batteries are fully compatible with all Bosch Professional 18 volt tools but the batteries have a distinct look. To accommodate the larger cells they are slightly wider. They have less red accents and a darker more black color scheme. Although the edges are still rounded the appearance is more angular.

The battery has a black plastic rectangular housing with rounded edges.

On top of the battery is a rail on both sides on which the battery can slide on a tool body or charger backwards. Between the rails are recessed electrical contacts. Marked with "+" (positive) on the left and "-" (negative) on the right.

On top near the front there is a spring loaded latch that secures the battery. A red button on the front of the battery has to be pushed down to release the latch and allow the battery to slide out.

The red bottom has ribs to that act like cooling fins to help dissipate heat faster. The red bottom extends about two thirds around the back. On the back is a push button which can be pressed to activate the battery charge indicator next to it that consists out of five green LEDs.