Gel battery - 100Ahr for $380
http://www.solaronline.com.au/cgi/index.cgi/shopfront/view_product_details?category_id=1107143916&product_id=1107445200
Thursday, September 18, 2008
Concorde Batteries
seem to have a good reputation in the us - $530 for 100Ahr
http://www.solaronline.com.au/cgi/index.cgi/shopfront/view_product_details?category_id=1107143916&product_id=1107358634
http://www.solaronline.com.au/cgi/index.cgi/shopfront/view_product_details?category_id=1107143916&product_id=1107358634
Battery monitoring/ balancing decisions
Time to make some decisions - there is too much info out there to digest it all!
I think that this paragraph was a bit of a revalation for me and cleared up what I had been starting to think
You want to watch the voltage under driving load, and not let them fall
below 10.5v per module (~136v for your pack of 13). Better would be to
monitor each individual module, and stop when any one of them falls below
10.5v.
To start with, if I am using 6 chargers, then I can just monitor each of the batteries (or sets of two batteries in parallel) and ensure that none goes below 10.5V.
If I do start to get problems, then I can consider some form of battery balancing then.
As for the parallel situation, I think that it would be good if I can avoid it but that may not be possible.
options for monitoring battereis seem to be the paktrakr or the dallas one wire chip
I think that this paragraph was a bit of a revalation for me and cleared up what I had been starting to think
You want to watch the voltage under driving load, and not let them fall
below 10.5v per module (~136v for your pack of 13). Better would be to
monitor each individual module, and stop when any one of them falls below
10.5v.
To start with, if I am using 6 chargers, then I can just monitor each of the batteries (or sets of two batteries in parallel) and ensure that none goes below 10.5V.
If I do start to get problems, then I can consider some form of battery balancing then.
As for the parallel situation, I think that it would be good if I can avoid it but that may not be possible.
options for monitoring battereis seem to be the paktrakr or the dallas one wire chip
battery selection
from EVDL
http://www.nabble.com/Now-I%27m-really-spooked-about-batteries-to12534767ef25542.html#a12535553
It is best to select you batteries your self from a dealer. They normally
get in 50 batteries to a pellet, so I select the best 30 that was all
balance in with of a voltage of 0.001 volt of each other. If you see any
dark positive posts, do not select that one, because this is a sign of a
post seal leak.
I like a battery where the tops have a built in sluts for a carrying handle
and also the top is about 1/4 wider the body of the battery. This allows
for air ventilation around the batteries while the tops may be tight
together. I also space the perimeter of the battery pack from the battery
box for air inlet and exhaust.
http://www.nabble.com/Now-I%27m-really-spooked-about-batteries-to12534767ef25542.html#a12535553
It is best to select you batteries your self from a dealer. They normally
get in 50 batteries to a pellet, so I select the best 30 that was all
balance in with of a voltage of 0.001 volt of each other. If you see any
dark positive posts, do not select that one, because this is a sign of a
post seal leak.
I like a battery where the tops have a built in sluts for a carrying handle
and also the top is about 1/4 wider the body of the battery. This allows
for air ventilation around the batteries while the tops may be tight
together. I also space the perimeter of the battery pack from the battery
box for air inlet and exhaust.
Evision
this would be worth getting some ideas from - info on victor's evision is somewhere in this post
http://www.mail-archive.com/ev@listproc.sjsu.edu/msg07997.html
http://www.mail-archive.com/ev@listproc.sjsu.edu/msg07997.html
other batteries to consider
as suggested on EVDL
http://www.nabble.com/Now-I%27m-really-spooked-about-batteries-to12534767ef25542.html#a12535553
Orbitals
Hawkers
Concordes.
Deka
http://www.nabble.com/Now-I%27m-really-spooked-about-batteries-to12534767ef25542.html#a12535553
Orbitals
Hawkers
Concordes.
Deka
multiple ADC and serial databus
this should be the goal
here is one persons take - I think that they should use the dallas one wire chip.
http://www.evdl.org/archive/index.html#nabble-to19194075|a19194075
here is one persons take - I think that they should use the dallas one wire chip.
http://www.evdl.org/archive/index.html#nabble-to19194075|a19194075
Zener Regulators for battery balancing
here is a post on the topic
http://www.nabble.com/Zener-Regulators-to15268525ef25542.html#a15273145
not sure i understand how well this will work - here is a doc on dodgy brothers
http://home.gci.net/~saintbernard/Zener_Regs.pdf
http://www.nabble.com/Zener-Regulators-to15268525ef25542.html#a15273145
not sure i understand how well this will work - here is a doc on dodgy brothers
http://home.gci.net/~saintbernard/Zener_Regs.pdf
PowerCheq
these seem to be worth looking into - not quite sure what they do
http://www.evdeals.com/PowerCheq.htm
http://www.evdeals.com/PowerCheq.htm
Rudman Regulator
seems only relevant for charging - I should be able to avoid by using 6 12V chargers
http://www.manzanitamicro.com/mk3reg.htm
http://www.manzanitamicro.com/mk3reg.htm
Wednesday, September 17, 2008
Panasonic Batteries
Panasonic batteries - $250 for 65Ahr
http://www.globebatteries.com.au/catalogue/LC-X1265P-Panasonic-12V-65000mAh-SLA-p-21543.html
or $370 for 100Ahr
http://www.globebatteries.com.au/catalogue/LC-XA12100P-Panasonic-12V-100-000mAh-SLA-Battery-p-21544.html
http://www.globebatteries.com.au/catalogue/LC-X1265P-Panasonic-12V-65000mAh-SLA-p-21543.html
or $370 for 100Ahr
http://www.globebatteries.com.au/catalogue/LC-XA12100P-Panasonic-12V-100-000mAh-SLA-Battery-p-21544.html
Delcor batteries
I should look into these - $230 for 80Ahr
http://www.batteriesplus.com.au/pd/554/239/delkor-dc27/
$260 for 100Ahr
http://www.batteriesplus.com.au/pd/1145/239/delkor-dc31-deep-cycle-battery/
http://www.batteriesplus.com.au/pd/554/239/delkor-dc27/
$260 for 100Ahr
http://www.batteriesplus.com.au/pd/1145/239/delkor-dc31-deep-cycle-battery/
Fullriver batteries
I need to copy the stuff from lower down to just have one battery type per post
fullriver 120ahr for $445
http://www.dynamicsolarsolutions.com.au/catalogue/batteriespg3.html
150ahr for $560
http://www.energymatters.com.au/fullriver-sealed-lead-acid-agm-battery-12volt-150ah-dc-p-135.html
150ahr for $298 - auction closed
http://www.secondhandsolar.com/product_desc.php?id=191
fullriver 120ahr for $445
http://www.dynamicsolarsolutions.com.au/catalogue/batteriespg3.html
150ahr for $560
http://www.energymatters.com.au/fullriver-sealed-lead-acid-agm-battery-12volt-150ah-dc-p-135.html
150ahr for $298 - auction closed
http://www.secondhandsolar.com/product_desc.php?id=191
Powersonic batteries
here is the spec sheet
http://www.power-sonic.com.au/pds/20080121-AU_DCG12100.pdf
discussed on evdl
http://www.nabble.com/PowerSonic-AGM-batteries%2C-any-thoughts-to17745425ef25542.html#a17745425
used by the ute in this conversion
http://www.thebackshed.com/Windmill/FORUM1/forum_posts.asp?TID=384&PN=1
$385 australian
http://www.dynamicsolarsolutions.com.au/catalogue/batteriespg3.html
http://www.power-sonic.com.au/pds/20080121-AU_DCG12100.pdf
discussed on evdl
http://www.nabble.com/PowerSonic-AGM-batteries%2C-any-thoughts-to17745425ef25542.html#a17745425
used by the ute in this conversion
http://www.thebackshed.com/Windmill/FORUM1/forum_posts.asp?TID=384&PN=1
$385 australian
http://www.dynamicsolarsolutions.com.au/catalogue/batteriespg3.html
Paralleleing batteries
I need to sort out if this is a good idea
from this post
http://www.evdl.org/archive/index.html
Please consider going with one string. Paralleling causes problems all
around. Your battery life would greatly increase. At least have a
contactor bank so that you can use only one string at a time. Each
string should be charged independently and have it's own SOC meter,
too.
Here is another EVDL post about paralleling batteries
seems that discharging is okay but charging may cause problems
http://www.nabble.com/Paralleling-batteries-in-high-current-environments-td18160663ef25542.html#a18167307
from this post
http://www.evdl.org/archive/index.html
Please consider going with one string. Paralleling causes problems all
around. Your battery life would greatly increase. At least have a
contactor bank so that you can use only one string at a time. Each
string should be charged independently and have it's own SOC meter,
too.
Here is another EVDL post about paralleling batteries
seems that discharging is okay but charging may cause problems
http://www.nabble.com/Paralleling-batteries-in-high-current-environments-td18160663ef25542.html#a18167307
Battery management
Here is a specific forum - really releated to lithium but may be useful in the future - I have joined the forum
http://autos.groups.yahoo.com/group/EVBMS/
more relevant to SLA
http://www.nabble.com/AGM-batteries-and-a-charger-question-to16366509ef25542.html#a16366509
I don't know if you want to say "need" a BMS, but folks who use a BMS with
their AGMs typically get about twice the lifespan out of them.
You can try searching the archives for "Battery Balancer". That's what
they called the most common type of BMS used with Lead-Acid batteries.
http://autos.groups.yahoo.com/group/EVBMS/
more relevant to SLA
http://www.nabble.com/AGM-batteries-and-a-charger-question-to16366509ef25542.html#a16366509
I don't know if you want to say "need" a BMS, but folks who use a BMS with
their AGMs typically get about twice the lifespan out of them.
You can try searching the archives for "Battery Balancer". That's what
they called the most common type of BMS used with Lead-Acid batteries.
sla battery summaries
this is a good summary of battery and charging issues
http://www.evdl.org/archive/index.html#nabble-p18749428
here is a good selection summary
http://www.cameronsoftware.com/ev/EV_BatterySelection.html
http://www.evdl.org/archive/index.html#nabble-p18749428
here is a good selection summary
http://www.cameronsoftware.com/ev/EV_BatterySelection.html
Tuesday, September 16, 2008
Genesis batteries
Byron said genesis batteries were the only way to go
they are A$260 for 65Ahr here
http://www.planetarypower.com.au/solar_batteries.htm#genesis
or $320 for 65Arh here
http://www.batterydoctor.com.au/store/view_product.php?product=NP65-12
or $230 for 55Ahr here
http://www.batterydoctor.com.au/store/view_product.php?product=NP55-12
this is the info on the big brother to what we have in the mira
http://www.master-instruments.com.au/products/55454/G12V70AH10EP.html
they are A$260 for 65Ahr here
http://www.planetarypower.com.au/solar_batteries.htm#genesis
or $320 for 65Arh here
http://www.batterydoctor.com.au/store/view_product.php?product=NP65-12
or $230 for 55Ahr here
http://www.batterydoctor.com.au/store/view_product.php?product=NP55-12
this is the info on the big brother to what we have in the mira
http://www.master-instruments.com.au/products/55454/G12V70AH10EP.html
Henda SLAs
AC motor from AEVA is using Henda batteries
here is a source of a 120Ahr - $400each for more than 4 -
http://www.altronics.com.au/index.asp?area=item&id=S5130
or the 65ahr version - $195 for more than 5
http://www.altronics.com.au/index.asp?area=item&id=S5114
best check who is using these on evalbum
henda and toyo seem to be the same mob - here is the spec sheet for the 120Ahr version
http://www.hendatoyo.com.cn/product/UploadFiles/200481611162591.pdf
here is a source of a 120Ahr - $400each for more than 4 -
http://www.altronics.com.au/index.asp?area=item&id=S5130
or the 65ahr version - $195 for more than 5
http://www.altronics.com.au/index.asp?area=item&id=S5114
best check who is using these on evalbum
henda and toyo seem to be the same mob - here is the spec sheet for the 120Ahr version
http://www.hendatoyo.com.cn/product/UploadFiles/200481611162591.pdf
Contactors
I cannot find any 24V contactors reasonably priced
Allbright SW180/200 24V or equivalent (LEV200)
http://www.evsource.com/datasheets/tyco/LEV200_ds_9-1773439-1.pdf
here is a supplier in australia - no prices though!
http://www.bridex.com.au/albright_product_range_3.htm
Beebs is the same mob as electricvehicleusa
this needs considering - $35usd
http://www.beepscom.com/product_p/ct-sw180-rcf.htm
$140 usd
http://www.beepscom.com/product_p/ct-sw200-390.htm
$130usd
http://www.beepscom.com/product_p/ct-zljm-400-24.htm
$100usd
http://www.beepscom.com/product_p/ct-zljm-200-24.htm
Allbright SW180/200 24V or equivalent (LEV200)
http://www.evsource.com/datasheets/tyco/LEV200_ds_9-1773439-1.pdf
here is a supplier in australia - no prices though!
http://www.bridex.com.au/albright_product_range_3.htm
Beebs is the same mob as electricvehicleusa
this needs considering - $35usd
http://www.beepscom.com/product_p/ct-sw180-rcf.htm
$140 usd
http://www.beepscom.com/product_p/ct-sw200-390.htm
$130usd
http://www.beepscom.com/product_p/ct-zljm-400-24.htm
$100usd
http://www.beepscom.com/product_p/ct-zljm-200-24.htm
Electric vehicle usa
http://www.electricvehiclesusa.com/aboutus.asp
they have the contactors I need but quote $60 us shipping!
they have the contactors I need but quote $60 us shipping!
other battery sources
on ebay - same as other supplier of fullriver
http://stores.ebay.com.au/ALL-PURPOSE-BATTERIES-ONLINE_W0QQcolZ2QQdirZQ2d1QQfsubZQ2d33QQftidZ2QQtZkm
http://stores.ebay.com.au/ALL-PURPOSE-BATTERIES-ONLINE_W0QQcolZ2QQdirZQ2d1QQfsubZQ2d33QQftidZ2QQtZkm
battery monitoring
I should have individual battery monitoring
this looks okay but a but bulky. I would like a 1 wire protocol or something similar
http://www.evconvert.com/article/led-bargraph-battery-monitor
from one of the comments on that page
If your in Astralia DSE have a this in kit form for about AU$9 each.
http://www.dse.com.au/cgi-bin/dse.storefront/482e8bd1040477a8273fc0a87f9c06f3/Product/View/K4611
or check out the PakTrakr - whatever that is
http://www.paktrakr.com/Shopping.html
or a circuit based on the MAX8211
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1273
or how about this?
http://www.futurlec.com/CarBatteryMonitor.shtml
or this
http://www.electronics-lab.com/projects/automotive/009/index.html
or this
http://www.uoguelph.ca/~antoon/circ/batmon12.htm
this looks okay but a but bulky. I would like a 1 wire protocol or something similar
http://www.evconvert.com/article/led-bargraph-battery-monitor
from one of the comments on that page
Another option I’ve been mulling over is an Arduino-based battery monitor. I’m not really a hardware guy, and barely a programmer, but from what I’ve read of this open source platform, it shouldn’t be horribly difficult to build a 6-battery monitor (the board has 6 analog inputs) that can send live data to a laptop: arduino.cc
I may just look into this as a winter project. The pre-assembled board is about $30 US.
or another comment from that articleIf your in Astralia DSE have a this in kit form for about AU$9 each.
http://www.dse.com.au/cgi-bin/dse.storefront/482e8bd1040477a8273fc0a87f9c06f3/Product/View/K4611
or check out the PakTrakr - whatever that is
http://www.paktrakr.com/Shopping.html
or a circuit based on the MAX8211
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/1273
or how about this?
http://www.futurlec.com/CarBatteryMonitor.shtml
or this
http://www.electronics-lab.com/projects/automotive/009/index.html
or this
http://www.uoguelph.ca/~antoon/circ/batmon12.htm
Enclosures
This is a great source of enclosures
https://www.soanarplus.com/getProductWebDetails.do?prodId=HB6132
https://www.soanarplus.com/getProductWebDetails.do?prodId=HB6132
multiple battery chargers
As it looks like the zivan NG1 may be getting closer to US$600 - A$720, I think that I should consider using multiple battery chargers as explained in
http://www.aeva.asn.au/forums/forum_posts.asp?TID=339
Here are 12V 12A chargers for $53 - 6 of them is about half the cost with more power.
https://www.soanarplus.com/getProductWebDetails.do?prodId=MB3612
or 16A for $92
https://www.soanarplus.com/getProductWebDetails.do?prodId=MB3620
or 3 x 24V at 6A - maybe not quite enough current
https://www.soanarplus.com/getProductWebDetails.do?prodId=MB3614
http://www.aeva.asn.au/forums/forum_posts.asp?TID=339
Here are 12V 12A chargers for $53 - 6 of them is about half the cost with more power.
https://www.soanarplus.com/getProductWebDetails.do?prodId=MB3612
or 16A for $92
https://www.soanarplus.com/getProductWebDetails.do?prodId=MB3620
or 3 x 24V at 6A - maybe not quite enough current
https://www.soanarplus.com/getProductWebDetails.do?prodId=MB3614
Monday, September 15, 2008
datalogging
This looks like a nice way to log data
http://www.sparkfun.com/commerce/product_info.php?products_id=8627
http://www.sparkfun.com/commerce/product_info.php?products_id=8627
Sunday, September 14, 2008
Battery testing
This mob in the link are making a ev battery tester - we should too!
http://www.arbin.co.kr/Download/products/EVTS.pdf
this is a little more what I was thinking
http://a4x4kiwi.blogspot.com/2008/06/long-awaited-20ah-greensaver-test.html
http://www.arbin.co.kr/Download/products/EVTS.pdf
this is a little more what I was thinking
http://a4x4kiwi.blogspot.com/2008/06/long-awaited-20ah-greensaver-test.html
battery calcuations
2kwhr/100km for every L/100km the car used
http://www.aeva.asn.au/forums/forum_posts.asp?TID=584
For the bubble at about 8L/100km, that would be 160whr/km - close to the 150whr that I have been using.
http://www.aeva.asn.au/forums/forum_posts.asp?TID=584
For the bubble at about 8L/100km, that would be 160whr/km - close to the 150whr that I have been using.
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