Hi......I own a 2013 Nissan leaf s with 46K miles and I'm looking at what battery options I have once it degrades beyond it's usefulness. $5500 for a new battery is out of the question and tearing apart the battery pack to replace cells is not in my comfort zone. That said.... I'm a diy guy and would like to put in a 2016 24Kw battery pack down the road. Can I put a 2016 battery in my 2013 ? Is it the same battery with the same mounts and electrical connections as 2013? Is it plug and drive or does it require software or hardware mods? Thanks for your input.