hwijegun
Posts: 7
Joined: Tue Aug 01, 2017 1:12 am
Delivery Date: 12 Aug 2017

Re: Is 96% SoH possible with 11,000 miles?

Fri Aug 04, 2017 7:24 am

alozzy wrote:You might want to consider other EVs that have thermal management systems (TMS) for better cooling.

I would research the Renault Zoe, VW e-Up!, Kia Soul EV, and VM e-Golf to see which, if any, have a TMS for keeping the pack cool in hot climates. I'm not very familiar with any of those cars, but perhaps someone else here knows for sure if any do...

Living in a developing country we only have access to a very little number of brands. The Zoe and the e-Golf are not available here. and even the nissan leaf doesn't have proper battery replacement or official dealers. So my hands are kind of tied :P

alozzy
Posts: 716
Joined: Fri Jan 20, 2017 4:25 pm
Delivery Date: 18 Jan 2017
Location: Vancouver, BC
Contact: Website

Re: Is 96% SoH possible with 11,000 miles?

Fri Aug 04, 2017 9:47 pm

My confusion is because you mentioned you were importing a Leaf from the UK, so I was suggesting EVs that are available in the UK.
Vancouver, CA owner of a 2013 Ocean Blue SV + QC, purchased 01/2017 in WA
Zencar 12/20/24/30A L1/L2 portable EVSE
1-1/4" Curt #11396 hitch
After market, DIY LED DRLs
LeafSpy Pro + Konnwei KW902 ELM327 BT OBDII dongle
Loving my first BEV :D

jim0266
Posts: 42
Joined: Fri Mar 17, 2017 10:14 am
Delivery Date: 17 Mar 2017
Leaf Number: 330446
Location: Akron, Oh

Re: Is 96% SoH possible with 11,000 miles?

Sat Aug 05, 2017 7:21 am

FWIW, my 2014 Leaf SV purchased in April at 8,700 miles was still showing 100% SOH. It soon dropped to the low 90's SOH. I ran into a chap on Facebook we said the slow driving was killing my battery. Keeping a log as I experiment with pulse driving to juice my battery. I do not have QC on my car, only L2 charging. After two pulsing sessions LeafSpy is reporting 66.86 AHr, 100% SOH and 104.18 Hx. I'm at 12,255 miles.

https://docs.google.com/spreadsheets/d/1GW3yY2nQ18X7M_GhTqpYP5BtN4gR25AMBLCy4rDQil8/edit#gid=2075187567

See this thread for more details: http://www.mynissanleaf.com/viewtopic.php?f=6&t=24061&start=20

hwijegun
Posts: 7
Joined: Tue Aug 01, 2017 1:12 am
Delivery Date: 12 Aug 2017

Re: Is 96% SoH possible with 11,000 miles?

Tue Aug 08, 2017 12:23 am

alozzy wrote:My confusion is because you mentioned you were importing a Leaf from the UK, so I was suggesting EVs that are available in the UK.

Ohh sorry for the confusion. Its a car that has been already imported from the UK and is at a sale in Sri Lanka now. Also I scanned it again after a quick run of around 10km and the battery SoH dropped to 94% from 96% which got me worried now. But I guess this is to be expected since its been sitting there for so long right?

hwijegun
Posts: 7
Joined: Tue Aug 01, 2017 1:12 am
Delivery Date: 12 Aug 2017

Re: Is 96% SoH possible with 11,000 miles?

Tue Aug 08, 2017 12:24 am

jim0266 wrote:FWIW, my 2014 Leaf SV purchased in April at 8,700 miles was still showing 100% SOH. It soon dropped to the low 90's SOH. I ran into a chap on Facebook we said the slow driving was killing my battery. Keeping a log as I experiment with pulse driving to juice my battery. I do not have QC on my car, only L2 charging. After two pulsing sessions LeafSpy is reporting 66.86 AHr, 100% SOH and 104.18 Hx. I'm at 12,255 miles.

https://docs.google.com/spreadsheets/d/1GW3yY2nQ18X7M_GhTqpYP5BtN4gR25AMBLCy4rDQil8/edit#gid=2075187567

See this thread for more details: http://www.mynissanleaf.com/viewtopic.php?f=6&t=24061&start=20

Hi, Thank you for your reply! What is this pulse driving and how do I achieve it to maximize my SoH?

jim0266
Posts: 42
Joined: Fri Mar 17, 2017 10:14 am
Delivery Date: 17 Mar 2017
Leaf Number: 330446
Location: Akron, Oh

Re: Is 96% SoH possible with 11,000 miles?

Tue Aug 08, 2017 11:01 am

I drive in Eco > B mode when trying to juice my battery pack. There is a nice 10 mile stretch of 2-lane road near my house that is flat and lets me get the car up to 50-60mph then let off the accel pedal. I watch the energy regen screen. In B mode it hits .30. Once it drops below that I accel back to 50-60 mph trying to get at least 5-6 bubbles or max it out. Then let off and repeat the cycle. For each pulse cycle I got back .01 Hx. 100 cycles to get back 1% of Hx in general. You can watch the Hx numbers rise in real time via LeafSpy. Once you reach 32% SOC this is where the trick stops working. When my SOH/Hx numbers fall into the mid 90's the pack is receptive to this pulse/regen cycling. When I think the car is ready for this I first charge to the low 90's SOC first or to 100% depending on the trip I'm making. The car will not let you regen to the full 30KWh until it reaches around 92% SOC.

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