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 Post subject: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Tue Feb 11, 2020 4:02 am 
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Joined: Tue Feb 11, 2020 3:48 am
Posts: 2
Got a latest PHEV (2.4ltr - 13.4kWh) few months ago and loving it.
I tend to keep my motors at least 15 years, usually buy them near new and run them till they literally fall apart.

So just thinking long term if there will be solutions that increases the battery capacity - Ideally if I can get 100 miles per charge that will be brilliant as that will cover 95% of all our trips.

Has anyone here/heard of anyone doing such an upgrade already ?

As battery cell energy density increases, I'm hoping someone will come up with a 'replacement' battery pack that is a straight forward plug-n-play for PHEV's current battery pack but offers something like double the current capacity or even more. Or even Mitsubishi will make their next gen PHEV battery pack compatible with older PHEV models (...most likely they won't even if they can I guess...)

PHEV has a full 4-wheel electric drive train, so hopefully will be able to just replace the battery packs every 10 yrs and keep driving it like pure EV for another 15-30yrs (assuming rest of the car stays in one piece......has good build quality)


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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Tue Feb 11, 2020 6:11 am 
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Joined: Fri Jul 26, 2019 3:52 am
Posts: 135
It's a nice thought, but I can't see it happening. Even such a simple thing as the battery capacity display on the dash will be wrong if the capacity is increased unless the Battery Management Unit is altered accordingly.


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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Wed Feb 12, 2020 5:33 am 
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Joined: Mon Mar 12, 2018 2:18 am
Posts: 573
Location: Yorkshire end of M1, UK
For 100 miles, you'd need a battery 4-5 times the size. In 6 years, Mitsubishi have managed to squeeze in an extra 18%. Plus you'd need to update the charging capabilities, or that would also take 4-5 times as long

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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Fri Feb 14, 2020 3:37 am 
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Joined: Mon Sep 07, 2015 2:34 pm
Posts: 322
Location: Devon UK
'vtechtuning' had a go at upgrading the cells but no idea of the eventual outcome. Must be a thread on here about it.

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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Thu Feb 20, 2020 3:03 am 
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Joined: Wed Feb 19, 2020 1:02 pm
Posts: 20
kompkar wrote:
Got a latest PHEV (2.4ltr - 13.4kWh) few months ago and loving it.
I tend to keep my motors at least 15 years, usually buy them near new and run them till they literally fall apart.

So just thinking long term if there will be solutions that increases the battery capacity - Ideally if I can get 100 miles per charge that will be brilliant as that will cover 95% of all our trips.

Has anyone here/heard of anyone doing such an upgrade already ?

As battery cell energy density increases, I'm hoping someone will come up with a 'replacement' battery pack that is a straight forward plug-n-play for PHEV's current battery pack but offers something like double the current capacity or even more. Or even Mitsubishi will make their next gen PHEV battery pack compatible with older PHEV models (...most likely they won't even if they can I guess...)

PHEV has a full 4-wheel electric drive train, so hopefully will be able to just replace the battery packs every 10 yrs and keep driving it like pure EV for another 15-30yrs (assuming rest of the car stays in one piece......has good build quality)


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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Mon Mar 02, 2020 1:22 am 
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Joined: Tue Feb 11, 2020 3:48 am
Posts: 2
It would help if there is government legislation supporting that all manufacturers should make battery modules plug-n-play, open source their BMS software(at least certain elements of it so 3rd party batteries can be made compatible).............feels like long way to go !

I was checking out on eBay some Outlander PHEV 12kWh batteries - on sale in UK from as low as 1500 GBP.
Those units looks enormous......I'm so surprised that just a large unit has only capacity of 12-13kWh.
It must be possible I hope to use Tesla type cylindrical battery cell modules to fit within the Outlander PHEV Battery enclosure and get double current capacity.
I don't mind longer charging cycles as I only charge at home and currently my 13.8 kWh battery takes approx 4.5hrs to charge - so even with double I will be looking at 9-10hrs max. and that will be fine to accommodate on most evenings for us.

It feels like there is a huge scope of new businesses and business models to be build around EV industry, looking forward to new start ups providing such services to EV's in the market place.


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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Mon Mar 02, 2020 1:31 am 
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Joined: Tue Aug 05, 2014 1:32 pm
Posts: 2015
Bear in mind the cost of extra capacity. The new EV Mustang in standard configuration delivers just under 300 miles per charge. If you want another 90 miles with the extended capacity version it adds £10k to the price! :o


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 Post subject: Re: Increasing/Upgrading - Higher Battery Capacity
PostPosted: Mon Mar 02, 2020 4:05 am 
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Joined: Fri Jul 26, 2019 3:52 am
Posts: 135
greendwarf wrote:
Bear in mind the cost of extra capacity. The new EV Mustang in standard configuration delivers just under 300 miles per charge. If you want another 90 miles with the extended capacity version it adds £10k to the price! :o


but not necessarily £10k to the cost ;-)


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