I was just saying there is no need to speculate.It's just math and you can put
a variable resistor in there and control the current flow while monitoring with
a meter.
From: Bill Collins <[email protected]>
To: paul dove <[email protected]>; [email protected];
[email protected]
Sent: Tuesday, June 7, 2016 8:40 AM
Subject: Re: [EVDL] Current limiting
That would be an extremely short lived event. Once current starts to flow, delta
voltage will decrease rapidly.
> On June 7, 2016 at 9:33 AM paul dove <[email protected]> wrote:
>
>
> Easy to calculate
> V=IR or I=V/R
> R should be very small in the case of connecting with wires or contactors etc.
> So if the delta voltage is 2 volts and R=0.1 ohms I=20amps.
> Easy to see that currents can get very high quickly as the delta V between
> batteries grows.
> A variable resistor could be inserted to control the current.
> In the case of my care fully charge is 149.6 volts fully empty can be as low
> as 110 volts.
> delta V = 39.6 volts if R=0.1 ohms then I =396 amps a 500 ohm resistor drops
> that to 80mA.
>
>
>
> From: Bill Collins via EV <[email protected]>
> To: [email protected]; [email protected]
> Sent: Tuesday, June 7, 2016 7:20 AM
> Subject: Re: [EVDL] Current limiting
>
> The resting voltage of a lead acid battery is significantly lower than the
> voltage required to charge it. For example: a fully charged 12 volt battery
> has
> a resting voltage of 12.6, but will not draw much current unless you apply
> 13.5
> volts or so. This means that when you connect two batteries with different
> states of charge, less current flows than many people think.
>
> Bill
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