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Nissan E-NV200 Tekna Panel Van, 24kWh plus Muxsan 45kWh UBEX, Kia Soul EV 27 kWh, BMW i3 94ah REX
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Discussion Starter · #1 ·
I'm planning on having a 17.6kWh battery range extender fitted to my 24kWh e-NV200 this summer. [Cleevely Electric Vehicles | Electrical Vehicles | Gloucestershire]

AVIVA's underwriters have looked at Muxsan's Website and stated that the UBEX range extender would be viewed as a notifiable modification and deemed as legal. There will be no penalty on the insurance premium.
All good news,...well, at least if you insure with Aviva.
Maybe other interested parties could contact their insurers and see what their position is then add to this post?

FYI: My tow-bar was also notifiable but with no premium penalty.
 

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I'm planning on having a 17.6kWh battery range extender fitted to my 24kWh e-NV200 this summer. [Cleevely Electric Vehicles | Electrical Vehicles | Gloucestershire]

AVIVA's underwriters have looked at Muxsan's Website and stated that the UBEX range extender would be viewed as a notifiable modification and deemed as legal. There will be no penalty on the insurance premium.
All good news,...well, at least if you insure with Aviva.
Maybe other interested parties could contact their insurers and see what their position is then add to this post?

FYI: My tow-bar was also notifiable but with no premium penalty.
Off topic but will this have the same rapidgate issues as the 40kw van? For a future purchase and would like to know if this is a better option.
 

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Nissan E-NV200 Tekna Panel Van, 24kWh plus Muxsan 45kWh UBEX, Kia Soul EV 27 kWh, BMW i3 94ah REX
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Discussion Starter · #3 ·
Off topic but will this have the same rapidgate issues as the 40kw van? For a future purchase and would like to know if this is a better option.
I'll point you to this video. The short answer is 'no'. I feel this is a better option than a 40kWh battery swap as the Rapid charging current is split over 2 battery banks.

 

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2011 Leaf with Muxsan 17.6kWh battery, curt tow hitch fitted for bikes or buzz rack P10
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my Muxsan Leaf has 17.6kwh extender (i believe the first gen 1 in the UK to have it) been with Hastings direct on a multi for both our leafs and they had no issue with the extender either.

The caveat is that they are not insuring the value of the extender and probably wouldn't if you were to ask them too. so there is that to consider too.
 

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Discussion Starter · #5 ·
my Muxsan Leaf has 17.6kwh extender (i believe the first gen 1 in the UK to have it) been with Hastings direct on a multi for both our leafs and they had no issue with the extender either.

The caveat is that they are not insuring the value of the extender and probably wouldn't if you were to ask them too. so there is that to consider too.
How is the Rapid charging performance?
 

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2011 Leaf with Muxsan 17.6kWh battery, curt tow hitch fitted for bikes or buzz rack P10
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Better than before but the limiting factor in my charging is the gen1 battery under the car. A 30kwh leaf battery upgrade under the car with the muxsan would gain me faster recharge times. That or a 40kwh is the next big upgrade.
 

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Discussion Starter · #7 ·
Better than before but the limiting factor in my charging is the gen1 battery under the car. A 30kwh leaf battery upgrade under the car with the muxsan would gain me faster recharge times. That or a 40kwh is the next big upgrade.
it's quite an upgrade path for relatively affordable prices.
What range do you get in the winter ?
 

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I've looked into this but found no info on the cells that they are using. Anyone got any info?
It won't work for me as the significant weight change would require a separate conformity, but I'm just curious what kind of chemistry Muxsan is putting in there, how safe it is, and how long the pack will last.
 

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I've looked into this but found no info on the cells that they are using. Anyone got any info?
It won't work for me as the significant weight change would require a separate conformity, but I'm just curious what kind of chemistry Muxsan is putting in there, how safe it is, and how long the pack will last.
I believe they are from scrapped/test VAG PHEV vehicles. There was a youtube vid on the subject, and a capacity test on one of their company vehicles showed negligible degradation after 12 months.
 

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winter range depends really on how much you use the heater in a gen1 leaf or any ev but especially with a ptc heater. Lucky for me my heater has packed in for a second time so I will be installing an eberspacher diesel heater eventually when I get the chance.

I think the cells are from a lesser known hybrid-gate where VW made a car which had an insulation layer which would breakdown due to thermal stresses overtime between the battery and the heatsink. Essentially to avoid huge recall costs most of these cars never got to market and so the batteries when straight to a warehouse to be sold as second life cells even though they really hadn't had their first life. My extender battery has been good. It is let down by the original gen1 cells under the car and so is probably forced to work quite hard.

given the quantity of cars and van Muxsan has made extended with these cells I suspect they will have to eventually look for different batteries which they can ensure there is a larger supply of. I'm confident they had this covered though, they are smart cookies.
 

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Discussion Starter · #11 ·
winter range depends really on how much you use the heater in a gen1 leaf or any ev but especially with a ptc heater. Lucky for me my heater has packed in for a second time so I will be installing an eberspacher diesel heater eventually when I get the chance.

I think the cells are from a lesser known hybrid-gate where VW made a car which had an insulation layer which would breakdown due to thermal stresses overtime between the battery and the heatsink. Essentially to avoid huge recall costs most of these cars never got to market and so the batteries when straight to a warehouse to be sold as second life cells even though they really hadn't had their first life. My extender battery has been good. It is let down by the original gen1 cells under the car and so is probably forced to work quite hard.

given the quantity of cars and van Muxsan has made extended with these cells I suspect they will have to eventually look for different batteries which they can ensure there is a larger supply of. I'm confident they had this covered though, they are smart cookies.
I'm sure there's a video on the forum showing a PTC heater DIY replacement on a LEAF....

Diesel Heater....Sacrilage!! Didn't Volvo toy with Diesel/White spirit heating on their prototype EV's a few years back but they've come away from it. [needs citation for sure]
 

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2011 Leaf with Muxsan 17.6kWh battery, curt tow hitch fitted for bikes or buzz rack P10
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Using diesel isnt a choice id favour but there is nothing as easy or practical to replace these gen1 heaters. The original ptc heater are a crap design in the first place destined for failure over time. There is no producer of them for not silly money and the fuse to get the circuit working again is a 6 hour dive into the front on the car for the professionals so labour is ridiculous too. Also they take so much range. On balance running a diesel heater on kerosene (lamp oil) to keep it from sooting up through the coldest parts of winter as opposed to abandoning the ev for an ice seems like a hugely preferable option.
Lots of folk see the word diesel and cant help making a comment of dirtying up a bev without understanding the motivations behind the decision.
 

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I believe they are from scrapped/test VAG PHEV vehicles. There was a youtube vid on the subject, and a capacity test on one of their company vehicles showed negligible degradation after 12 months.
winter range depends really on how much you use the heater in a gen1 leaf or any ev but especially with a ptc heater. Lucky for me my heater has packed in for a second time so I will be installing an eberspacher diesel heater eventually when I get the chance.

I think the cells are from a lesser known hybrid-gate where VW made a car which had an insulation layer which would breakdown due to thermal stresses overtime between the battery and the heatsink. Essentially to avoid huge recall costs most of these cars never got to market and so the batteries when straight to a warehouse to be sold as second life cells even though they really hadn't had their first life. My extender battery has been good. It is let down by the original gen1 cells under the car and so is probably forced to work quite hard.

given the quantity of cars and van Muxsan has made extended with these cells I suspect they will have to eventually look for different batteries which they can ensure there is a larger supply of. I'm confident they had this covered though, they are smart cookies.
Thanks for the info guys, interesting stuff.
In one video I had seen some cells with blue celophane stacked upright, I'll try to find the video.

Talking about battery supplies, I wonder where Muxsan gets their 40kWh packs for the replacements.
One would imagine that it would be from scrapyards or insurers, but how realistic is that? You would have to have an entire team running after scrapped cars all day everyday to find enough battery supplies.
Could Nissan be feeding them the packs through the backdoor?

I've been scanning different markets for a 40kWh battery, it's like looking for a needle in the haystack.
 

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2011 Leaf with Muxsan 17.6kWh battery, curt tow hitch fitted for bikes or buzz rack P10
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I think they have to do it like everyone else. I presume Emile has one of the new hires on it as part of their job. He was also offering a bounty/finders fee for customers/joe public who find any they can fit.

EDIT. also Nissan help their customers make their cars last longer? mwah ha ha ha ha ha ha ha ha ha ha ha lol,

they are, how to say it politely, Nissan are a bit shit at economical repair. Especially batteries. If they weren't Muxsan wouldn't need to exist.
 

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2011 Leaf with Muxsan 17.6kWh battery, curt tow hitch fitted for bikes or buzz rack P10
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just had my renewal through hastings. it was up by 50% which is kinda ridiculous considering that im doing no miles and dont intend to next year either.

So we have gone from the multicar for the two leafs and mine (Muxsan one) is now insured through Adrian Flux with AXA as the underwriter. The key difference according to Adrian flux is that now the mod is insured so the car in a write off is worth approx £10k rather that the £5k I would get if its written off whilst I'm with Hastings.

Anyway just thought Id post an update to let folk know there are more options to insure the muxsan converted cars with.
 

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Discussion Starter · #16 ·
just had my renewal through hastings. it was up by 50% which is kinda ridiculous considering that im doing no miles and dont intend to next year either.

So we have gone from the multicar for the two leafs and mine (Muxsan one) is now insured through Adrian Flux with AXA as the underwriter. The key difference according to Adrian flux is that now the mod is insured so the car in a write off is worth approx £10k rather that the £5k I would get if its written off whilst I'm with Hastings.

Anyway just thought Id post an update to let folk know there are more options to insure the muxsan converted cars with.
That is excellent information to share. Thanks for posting that.
 

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I have an ENV-200 with Muxsan UBEX. Churchill covered the battery, CCS and towbar at no extra charge. They even said they were not notifiable modifications (although I strongly recommend informing them anyway and getting written confirmation).

However, Churchill will not touch any kind of suspension modification (which MUXSAN did due to the weight of the batteries).
Adrian Flux have quoted me £100 more than I was paying for equivalent cover (including extras and cover of the value of the batteries).
 

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That is frustrating, you werent tempted to upgrade the original pack to a 40kwh too?

Also what is your range now with 24+45kwh on the highly questionable gom at 100% soc?
 

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The dash says over 250 miles. The trip back from Holland used 30% for 80 miles and reported 3.5 miles per kWh (no aircon/heater) on a mixture of A roads and dual carriageway, driven at the speed limit.

I never considered replacing the 24kW, why bother? Besides 40s are hard to find.
 

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I never considered replacing the 24kW, why bother? Besides 40s are hard to find.
just a way of maximising range, if your happy with the 24kw plus the extra 45 then it matters not. In my leaf I would have been much better off if id have found a newer nissan pack perhaps a 40kwh but then my rex battery is only 17.6kwh so that's a big difference
 
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