Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-06 Thread Paul Dove via EV
That technology is not on every vehicle manufactured. Some will never be willing to pay for it. Sent from my iPhone On Aug 4, 2015, at 8:53 PM, Ben Goren via EV ev@lists.evdl.org wrote: On Aug 4, 2015, at 6:34 PM, Alan Arrison via EV ev@lists.evdl.org wrote: We already went round and

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread via EV
It's possible he has a defective battery. Also, I still don't believe balances work on Lithium cells. Sent from Outlook On Mon, Aug 3, 2015 at 9:40 PM -0700, Bill Dube via EV ev@lists.evdl.org wrote: There are too many variables to draw any strong conclusions. The two biggest

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Cor van de Water via EV
- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of via EV Sent: Tuesday, August 04, 2015 5:03 AM To: Electric Vehicle Discussion List; Bill Dube Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing It's possible he has a defective battery. Also, I still don't

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Paul Dove via EV
I whole heartily agree. Sent from my iPhone On Aug 4, 2015, at 8:34 PM, Alan Arrison via EV ev@lists.evdl.org wrote: We already went round and round with this no self discharge, no BMS fellow a few months ago. On 8/4/2015 5:08 PM, paul dove via EV wrote: Hey Mark, I know that seems

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Paul Dove via EV
of this message is prohibited. -Original Message- From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of via EV Sent: Tuesday, August 04, 2015 5:03 AM To: Electric Vehicle Discussion List; Bill Dube Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing It's

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Cor van de Water via EV
Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing Hello Cor van de Water, My name is Paul Dove, thus dovepa. I don't know you either. Just knowing your name or where you work does not make me know you. It is not really relevant who uses a BMS. People used to use x-rays

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Cor van de Water via EV
To: Cor van de Water; Electric Vehicle Discussion List Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing I don't believe cell drift exist either. If they are unbalanced it is because there is a parasitic load on the cells that are unbalanced. Sent from my iPhone On Aug 4

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Roland via EV
: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing I believe he is experiencing temporary capacity fade mostly. I did a recent test after all the battery discussion we had last month. I had some CALB gray cells 60ah in my garage. I had left them at 2.5 volts which every one tells me

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread paul dove via EV
their effectiveness and the necessity. From: Cor van de Water via EV ev@lists.evdl.org To: Electric Vehicle Discussion List ev@lists.evdl.org Sent: Tuesday, August 4, 2015 10:48 AM Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing Hello dovepa at bellsouth.net AKA via EV

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Mark Grasser via EV
Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing Hello Cor van de Water, My name is Paul Dove, thus dovepa. I don't know you either. Just knowing your name or where you work does not make me know you. It is not really relevant who uses a BMS. People used to use x

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread paul dove via EV
ev@lists.evdl.org To: 'Electric Vehicle Discussion List' ev@lists.evdl.org Sent: Tuesday, August 4, 2015 3:37 PM Subject: Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing To be simple it is not all about just the fact that all cells get the same amount of current, thus

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Alan Arrison via EV
We already went round and round with this no self discharge, no BMS fellow a few months ago. On 8/4/2015 5:08 PM, paul dove via EV wrote: Hey Mark, I know that seems like sounds reasonable to most people. However, a battery is chemical and while you can measure resistance with a meter a

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-04 Thread Ben Goren via EV
On Aug 4, 2015, at 6:34 PM, Alan Arrison via EV ev@lists.evdl.org wrote: We already went round and round with this no self discharge, no BMS fellow a few months ago. Yes, we did. I think a good analogy might be the Tire Pressure Monitoring System found in every new car for ages. You could

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-03 Thread ph...@bill-collins.net via EV
I see a couple of things wrong here that make me question the whole article: 1) The author seems to think that supercharging will be harder on the pack than fast charging a LEAF because the supercharger is higher rate. BUT, compared to total pack capacity, the supercharger is the lower of the

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-03 Thread Bill Dube via EV
There are too many variables to draw any strong conclusions. The two biggest factors are: 1) The BMS does not have as much time to balance during a fast charge. 2) The cell temperature is typically higher (for many reasons) when you fast charge. The cells don't like high temperatures. Stale

[EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-03 Thread brucedp5 via EV
'“It’s fine to Supercharge,” she said “Just don’t do it too much.” Tesla Service Center “pack balancing” ... they do it all the time. “Discharge it as close as you can to zero, and then charge it as slow as possible all the way up to 100 percent,” ... “You’ll probably get some capacity back.”'

Re: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing

2015-08-03 Thread via EV
: [EVDL] EVLN: Offset Supercharging degradation w/ pack balancing To: ev@lists.evdl.org '“It’s fine to Supercharge,” she said “Just don’t do it too much.” Tesla Service Center “pack balancing” ... they do it all the time. “Discharge it as close as you can to zero, and then charge it as slow