[Oeva-list] Think City

Theoldcars at aol.com Theoldcars at aol.com
Mon Jun 4 22:06:01 PDT 2012

While I have not worked on a Think. It sounds like your  describing a 
Balancing/Leveling charge. This requires you leave the vehicle  plugged until the 
BMS tops off all cells. This is not going to use much energy  but it can 
take a long time to balance cells. 
If you deeply discharge a pack there is a much greater chance of them  
becoming out of balance. For long life all battery manufacturers recommend not  
to discharge below 80% SOC. If you really want to extend the life of your 
pack  try and keep the SOC between 40% to 80%. It will add thousands of cycles 
to your  pack if your use allows doing so. 
Congratulations to you and all the other Think owners. 
Don Blazer
In a message dated 6/1/2012 2:09:57 P.M. Pacific Daylight Time,  
oeva-list-request at oeva.org writes:

Message:  3
Date: Fri, 1 Jun 2012 14:08:18 -0700
From: Michael EATON  <michael.j.eaton at multco.us>
Subject: Re: [Oeva-list] Think  City
To: Joseph Lundgren <joe.lundgren at gmail.com>
Cc: OEVA  <oeva-list at oeva.org>
<CAPDzVoao_WgWLtMbKwvMswpGSVd7W_h37SNU2BKm-wsZ1ViRLg at mail.gmail.com>
Content-Type:  text/plain; charset="iso-8859-1"

Yeah, the radio.  Not exactly  intuitive is it?

I read the auto manual cover to cover last  night.  Pretty good overall.

Here's a question:  They gave me  a L1 charger that looked different from
the ones I saw in most of the other  cars.  Its a large green Levitron.  12
Amp.  Charged 12  hours (starting at 80% full) and never turned itself off.
I can only  imagine that the last bit of power to raise the level from 99%
to 100% is  asymptotic: takes an hour to do 1/2% then another hour to do 1/2
of a 1/2,  then another hour to do 1/2 of a 1/2 of a 1/2, etc.  When does
the  charger know when to turn itself off?


Michael Eaton  P.E.                     Sellwood Bridge Project
Design Engineering  Manager            Multnomah County  Bridges
503.780.8947                 2100 SW River  Parkway

*michael.j.eaton at multco.us*           Portland, OR 97201

On Fri, Jun 1, 2012 at  9:44 AM, Joseph Lundgren  
<joe.lundgren at gmail.com>wrote:

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