R&M Load 60 dual battery retrofit


I have a Riese und Müller Load 60 from 2018, with a single battery. I would like to carry a second battery with me, and I have come accross the following thread on the forum:


The original poster in the above thread states that when he connected the second battery with the Y-cable, the system recognized the second battery, and it worked properly - in spite of the Y-cable officially being not meant for retrofitting the dual battery system, but only for servicing purposes.

So my question is, has anybody added a second battery to a single-battery Bosch Performance CX system with success? Apart from the Y-cable, what else is needed cable-wise?

Thank you,


(I will also post the question in the cited thread, so the original poster there can answer here if he wants to.)
Oben Unten