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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Dear Crispin,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> Charging any battery needs OVERVOLTAGE
A car battery of 12V needs 14,5V in the car to charge it and well controled:
max 15,5 till the First H2 bubbel apears .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>In labtop Li ION is used in FAST mode !And
for safety each couple so 4 controls are done also one or 3 temperature sensors
! and some times a pressure switch inside a cell! Not resetable !<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Exemple : 4cells in paralel =3,7 V .Empty
is 2,9 V .</span></font><b><font size=2 color=red face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:red;font-weight:bold'>Charging must
be 4,2V exact</span></font></b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'> ! no more. Current
limited to <st1:metricconverter ProductID="0,5 A" w:st="on">0,5 A</st1:metricconverter>
otherwise it takes <st1:metricconverter ProductID="3,5 A" w:st="on">3,5 A</st1:metricconverter>
After 10 minutes no current limmited takes <st1:metricconverter
ProductID="1,5 A" w:st="on">1,5 A</st1:metricconverter> for 2 hours Stop at O,9
amp . No heat !<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Use 24 LED Hüfner lampset with regulator
for 4,5 V . For other LED combinations 3,2 V you substract 0,6 V with any Si
diode zener-effect like 1N 1002 1Amp 3,7-0,6 V=3,1 V Or Ge diode is minus
0,4 V like OA100 .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>You must not charge and licht the same
time!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Is high power 100 000 candela or 1watt or
40 watt ? It exist .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>But 24 leds for 480 mA is all you need to
work at night in the garden .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Labtop uses no chopper in the battery ! It
only NEEDED OVERTENSION to charge . Battery 14,8 V is charger 20 V and 8cells ,4serie
couple .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>6cells in serie 6x3,7 =22,2 V battery but
charger 4,2x6=25,2V switched power supply at 40 KHz to make it light weight end
cheaper than a transformer of 100 Watt and less losses ..<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>LED controler Chips use puls wide
regulation.and tension adaption .<o:p></o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color=fuchsia face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:fuchsia;font-weight:bold'>A
dead battery pack can be new in the cells and broken in the chips inside the
pack !! Or 1cell bad and 7 new for Africa …..= 100$ from the waste bin
!!!<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>(Even a dead cell in a new envelope gave
tension again !! Only by pressure switch off,inside the cell !.</span></font><b><font
size=2 color=red face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:red;font-weight:bold'>MIND NERVE GAS under pression</span></font></b><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'> )<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Frans<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Van:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> stoves-bounces@lists.bioenergylists.org
[mailto:stoves-bounces@lists.bioenergylists.org] <b><span style='font-weight:
bold'>Namens </span></b>Frans Peeters<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> vrijdag 3 februari 2012
3:04<br>
<b><span style='font-weight:bold'>Aan:</span></b> '<st1:PersonName w:st="on">Discussion
of biomass cooking stoves</st1:PersonName>'<br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> Re: [Stoves] TEG geat
idea / Li ION recup small idea</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Dear Crispin,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> Indeed a labtop charger is 20V DC <st1:metricconverter
ProductID="3,5 A" w:st="on">3,5 A</st1:metricconverter> charging current
for 3,8 Ah ,but the battery is14,8 Volt .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>But between charger and cells you have 20
cm2 chips inside the battery and and 30 cm2 in the PC ….So supper
uPcontrol and secret design !<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>DELL P/N75UYF contains 8 cells=4 times 2
paralel so 14,8:4=3,7 volt.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Put all <st1:metricconverter
ProductID="8 in" w:st="on">8 in</st1:metricconverter> paralel and 3,7 V will
run your ideal 24 LEDs licht like HÜffner Germany with regulator inside
,intended for 3X1,5=4,5 volt<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Charging was indended in Africa with 1 sun
cell of 3$ limited with zener to 4,2 volt<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>PC controler use 4,28 V charging / cell
.Puls only at the end . An emty cell needs soft start charging <st1:metricconverter
ProductID="0,5 A" w:st="on">0,5 A</st1:metricconverter> for 10 minutes
.followed by 2h at <st1:metricconverter ProductID="1,5 A" w:st="on">1,5 A</st1:metricconverter>
.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>LEDs design </span></font><b><font size=2
color=fuchsia face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:fuchsia;font-weight:bold'>current is important,</span></font></b><font
size=2 color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>less the voltage !! Can be adapted with a serie resistor like 56
ohm for 6 leds . Find the value with a current meter and potentiometer .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Regars<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Frans<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>Van:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
stoves-bounces@lists.bioenergylists.org
[mailto:stoves-bounces@lists.bioenergylists.org] <b><span style='font-weight:
bold'>Namens </span></b>Crispin Pemberton-Pigott<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> donderdag 2 februari
2012 16:54<br>
<b><span style='font-weight:bold'>Aan:</span></b> Stoves<br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> Re: [Stoves] TEG geat
idea / Li ION recup small idea</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Dear Frans<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>The charging voltage
for a great many laptops is 19-21 volts for a 6 cell Li-Ion battery.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Is it fair to say
that it is safe to charge one cell with 4.2 volts, with an operating voltage of
3.2?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>3.2 is enough to
fire most HE-LED’s though many of the packaged units use 3.5 (for full
brightness of white HE-LED’s).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>19/6 = 3.2 (only) so
perhaps 4.2 is a bit high. Are they using a pulse width modulated chopper to
increase it to 25.2 as the charging voltage, or something else?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>I recall some
battery packs are charged as 2 parallel sets of <st1:metricconverter
ProductID="3 in" w:st="on">3 in</st1:metricconverter> series, but power is
drawn as <st1:metricconverter ProductID="6 in" w:st="on">6 in</st1:metricconverter>
series. Those were 12 VDC input. Now they are all 19.2 or so. The one I use has
a 9-cell and it is probably 3 sets of <st1:metricconverter ProductID="3 in"
w:st="on">3 in</st1:metricconverter> series when charging.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Breaking out the
cells from an old laptop is a safe thing to do and probably some cells are
better than others. In previous discussions here we have noted that an old
(almost dead) cell phone battery can run 3 LED’s for a couple of weeks. ‘Dead’
to a phone or laptop is not at all dead to a light, especially the newest high
efficiency small white ones.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Thanks for your continuing
advice and enthusiasm.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'>Crispin<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span lang=EN-CA
style='font-size:11.0pt;font-family:Calibri;color:#1F497D'><o:p> </o:p></span></font></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><font size=2 face=Tahoma><span lang=EN-US
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
Frans Peeters [mailto:peetersfrans@telenet.be] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, February 02, 2012
9:03 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Stoves <br>
<b><span style='font-weight:bold'>Subject:</span></b> TEG geat idea / Li ION
recup small idea<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span lang=EN-CA
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Dear RON LARSON ,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> With KNOW HOW…., a smal idea can become a geat
idea for Africa !<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The World is over full with LAPTOPS and weak powerpacks !<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>DELL :It contains 8 Li ION cells of 3,7 volt 3,5Ah<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>And regulator prints inside -----</span></font><font size=2
face=Wingdings><span style='font-size:10.0pt;font-family:Wingdings'>à</span></font><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> secret !!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>80% of this broken or wasted packs can be used for head
lichts and home lichting , with 24 LEDS;<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> you get one week lichted evenings !<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>You put all the cells in paralel .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>And charge by sun with a 10x5 cm sun panel end <b><font
color=red><span style='color:red;font-weight:bold'>limit the voltage on 4,2
Volt</span></font></b> like ZX4,2 zener diode<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Not more, for explosion danger .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It contaains Fluorinated ether !!!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> (For the laesy and fortunated….
:www.CONRAD. de could sell rechargeable Lithium ION cells !
Not to find in a shop . ) <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Frans .<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
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