BMW i3 120Ah battery upgrade - How to?

You asked for it, here it is. All the details on why the BMW i3 120Ah upgrade is so hard to pull off. Massive thanks to Havrla for supplying so much information and video material! Need an i3 upgrade? Get in touch with Havrla here:

http://www.i3upgrade.cz/
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Видео BMW i3 120Ah battery upgrade - How to? канала Daniel Öster