Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
- C-Car
- Messages
Search
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
? ? ? ? ? ? Hi ib and All, ? ? ? ? ? ? ? ?Yes Bob passed on about 3 yrs ago and missed.? He helped me do my 'FreedomEV', google under image,? before I got sick was suppose to be the next CCar but medical costs bankrupted me.. ? ? ? ?.? Some pics on 'Sunrise2 EV' website of Bob, his first EV, me and Lee Hart, etc? and one pf my EV trike pickups.. After I got sick I gave the Sunrise CF body to Lee as I couldn't do it in my conditions, broke, handicapped.? ?? ? ? ? ? ? I don't know Stone and met Bob through the EVDL list that kept EVs alive though the dark ages. ? ? ? ? ? I'm presently doing a 200+ mile range EV trike aero subcar with 1k lb aero trailer and an all composite unibody 63 Vette looking EV supercar with Tesla 3 donor parts and new Bolt modules.? Just need a crashed 3 without the battery pack. ? ? ? ? ?I'd really be interested in the source of the Volt BMS, the person selling the ready to use modules? as not against them and need them for selling Volt modules for storage as need to last 20 yrs I believe Volt modules are capable of and more from my experience.? Just not been available at reasonable prices before costing almost as much as what I sell modules for. ? ? ? And I sell them for the same, less than premium lead/useable kwh so buying lead isn't worth it anymore as longer life, less weight,? hassles, more power than lead. ? ? ? ? ? ? ? ? ?Thanks,? ? ? ? ? ? ? ? ? ? ? ? ?Jerry Dycus ? ? ? ? ??
On Tuesday, August 4, 2020, 07:32:27 PM PDT, ibdilbert01 via groups.io <ibdilbert01@...> wrote:
I didn't realize Rice passed on, is Stone still alive?
|
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
Another option I've been keeping an eye on with lithium is Roypow lithium.? The golf cart guys have been liking them, with integrated Bms, warranty and easy hookup. I haven't heard them mentioned here before.? On Tue, Aug 4, 2020, 9:31 PM jerry freedomev via <freedomev=[email protected]> wrote:
|
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
Hi Roy and All, I have many Volt packs as I sell them to other EV people upgrading from lead packs., use Volt modules in my custom EVs like my EV trike pickup.?? ?No I don't use them in a CCar though use to own several? and a good friend helped design, build them, Bob Rice now passed on and want to see them preserved. No vids, just what I've wrote like here in other posts with greater detail tonight. I'd be interested in a BMS for storage use and where to buy one and what the person you talk about is selling. Is it 2kwh or 4kwh modules at $700? Jerry Dycus
On Tuesday, August 4, 2020, 08:01:39 AM PDT, Roy Egan via groups.io <lowbid2001@...> wrote:
Hi Jerry ? ? ?So you have a 48v battery pack from a volt....and its in your commuta/citi car. Looked up Bms and see battery management system. We have a guy locally here selling craigslist reconditioned hybrid car batteries with 6 month warranty for like 700...sounds like the way to go.....seen any videos youtube explaining your technique |
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
Hi Tom and all, ? ?In the Ccar you just need to circulate the coolant as unlikely to heat them much mostly to keep all the cells the same temp or the end cells can differ. To ib's post here, I'm at 2.5 yrs of use and charging? abuse yet the cells are still within 1/100th of? Volt of each other without a BMS. On a Chevy it certainly could be needed but almost no one uses a BMS on Volt modules. I charge to 49.2vdc as per Volt specs and use 38vdc as the low voltage as not much capacity under it anyway and not worth possible damage.? ?I've accidently charged to 58vdc and had to run off a kwh to get it back to full charge with no damage I can tell but wouldn't do it again. Jerry Dycus?
On Tuesday, August 4, 2020, 10:40:38 AM PDT, Tom Rymes <tom@...> wrote:
On 08/04/2020 12:00 PM, ibdilbert01 via groups.io wrote: > Volt batteries work well, I have two sections @ 48 volts in mine.? ?You > really do need BMS on those cells, they are like any other lithium > cells.? You can get by with it for the first few years, but after a > while some cells will become weaker and without BMS you will shorten the > life of your batteries (specifically the weaker cells).? ? The Chevy > volt has both passive and active BMS onboard.? GM didn't do this because > it "wasn't necessary".? ?A properly configured 48 volt lithium pack will > charge to 50.4 volts and shouldn't be discharged below 36 volts. On a similar note, Chevy didn't install water cooling because it "wasn't necessary", either. Has anyone plumbed up the water channels, along with a small pump, rad, and fan for temperature control while charging, etc, or is the rate of charge/discharge so much slower nobody bothers? Tom |
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
Hi ? and All, On regular charging, driving? they shouldn't get warm but this is mostly for reviving ones sitting a long time. Jerry Dycus
On Tuesday, August 4, 2020, 11:52:04 AM PDT, ibdilbert01 via groups.io <ibdilbert01@...> wrote:
I think I'm going to lean on the latter part of your post.? ?The set I have never even get warm to the touch when charging or discharging.??
|
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
?Hi Roy and All, Nice but a few details.? ?I'd never break up a Volt module or not run coolant in a CCar.? Just get a single 2 48vdc section Volt module stock and wire the 48vdc sections in parallel.? You can damage them by splitting them too. ?Only the 4kwh module can work this way as the 5 and 7 kwh modules have 24vdc section in them. You can get 48vdv but you'd need 2 of them for a minimum of 10kwh with 2 5kwh modules making the Ccar a long ranger.? ;^) A 4kwh unit will give about the same range as the 8vdc battery Ccar gets as lighter. And peppier to boot.? Every EV I've switched to lithium from lead has been nicely faster acceleration.? Next they don't need a BMS. They put out 1k amps/module with 2 48vdc sections in parallel? that is 2k amps so you are not going to hurt them.? . I'd buy a 48vdc, 650 amp controller as far better suited for a C car if not going to a higher voltage as needs the amps.? The stock contactor controller is about 1k amps.? ?I use a 48vdc power supply set for 49.2vdc for charging. For faster charging the stock lead charger with a timer.? Combine the 2 and set the timer to shut of before reaching full charge and let the PS take it to full charge. Note the shut off switch is likely a 12vdc marine unit and shouldn't? be switched off at full power like a shorted controller. That is what the contactors are for and? a correctly sized fuse that will pop with full power and heavy braking.?? Jerry Dycus
On Tuesday, August 4, 2020, 12:38:45 PM PDT, Tom Rymes <tom@...> wrote:
On 08/04/2020 11:01 AM, Roy Egan via groups.io wrote: > Hi Jerry >? ? ? ?So you have a 48v battery pack from a volt....and its in your > commuta/citi > car. Looked up Bms and see battery management system. We have a guy > locally here selling craigslist reconditioned hybrid car batteries with > 6 month warranty for like 700...sounds like the way to go.....seen any > videos youtube explaining your technique A member of the C-Cars group on Facebook did this recently: Tom |
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
On 08/04/2020 11:01 AM, Roy Egan via groups.io wrote:
Hi JerryA member of the C-Cars group on Facebook did this recently: Tom |
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
On 08/04/2020 12:00 PM, ibdilbert01 via groups.io wrote:
Volt batteries work well, I have two sections @ 48 volts in mine.? ?You really do need BMS on those cells, they are like any other lithium cells.? You can get by with it for the first few years, but after a while some cells will become weaker and without BMS you will shorten the life of your batteries (specifically the weaker cells).? ? The Chevy volt has both passive and active BMS onboard.? GM didn't do this because it "wasn't necessary".? ?A properly configured 48 volt lithium pack will charge to 50.4 volts and shouldn't be discharged below 36 volts.On a similar note, Chevy didn't install water cooling because it "wasn't necessary", either. Has anyone plumbed up the water channels, along with a small pump, rad, and fan for temperature control while charging, etc, or is the rate of charge/discharge so much slower nobody bothers? Tom |
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
Volt batteries work well, I have two sections @ 48 volts in mine.? ?You really do need BMS on those cells, they are like any other lithium cells.? You can get by with it for the first few years, but after a while some cells will become weaker and without BMS you will shorten the life of your batteries (specifically the weaker cells).? ? The Chevy volt has both passive and active BMS onboard.? GM didn't do this because it "wasn't necessary".? ?A properly configured 48 volt lithium pack will charge to 50.4 volts and shouldn't be discharged below 36 volts.?
|
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
Hi Jerry
? ? ?So you have a 48v battery pack from a volt....and its in your commuta/citi car. Looked up Bms and see battery management system. We have a guy locally here selling craigslist reconditioned hybrid car batteries with 6 month warranty for like 700...sounds like the way to go.....seen any videos youtube explaining your technique |
|
Re: Reviving lead batteries, buying new ones, Need Help getting 1980 Commuta going
? ? ? ? ? ? ? ? ?Hi Roy and all, ? ? ? ? ? ? ? ? ? ? ? ?Lead batteries should be charged to 2.5vdc/cell and after charging, sitting for a while settle to 2.2vdc/cell. ? ? ? ? ? ? ? ? ? ? ? Older long discharged batteries should be taken to 2.5vdc/ cell for an hour, discharged to 2vdc/cell and recharged to 2.5vdc/cell and cycled 2 more times to wake them back up. 100% discharged is about 1.8vdc/cell ? ? ? ? ? ? ? ? ? ? ? These will boil and they need to in order to equalize. ? ? ? ? ? ? ? ? ? ? ? ?Then set them to 2.3vdc/cell for a day or 2. ? ? ? ? ? ? ? ? ? ? ? ? Then separate them and test them for voltage after letting them set, then for amps.? Write down each and if not close, charge, cycle again whichever one/s are over 10% lower and see if they come back. ? ? ? ? ? ? ? ? ? ? ? ?As a 48vdc pack should charge to 60vdc, an equalizing charge and about 54vdc regular charging and equalize once every 5 charges. ? ? ? ? ? ? ? ? ? ? ? Another way is charge in series to 60vdc and check voltages and charge up any low ones to 2.5vdc/cell.? ?Discharge the string and recharge, repeating charging the low ones until after a day they are all 2.2vdc/cell.? Then cycle them a few times and they'll be as good as they will be. ? ? ? ? ? ? ? ? ? ? After sitting a while they stabilize so need to be woken up. ? ? ? ? ? ? ? ? ? ? ?Use the EV or a oven element in water, hotplate, other load and remember don't turn on or off any AC switch? as they won't survive DC switching, especially turning them off. disconnect at the battery.? For 8vdc batteries a 12vdc headlight using both elements works good though only 8 amps or so. ? ? ? ? ? ? ? ? ? ? ? It's some work but will pay off by staying equal while driving if they are still good.?? ? ? ? ? ? ? ? ? ? ? ? If you have to buy a new set think about buying used LG cell lithium like Volt EV? modules as barely more expensive now and a lot lighter and they don't need a BMS. ? ? ? ? ? ? ? ? ? ? ? Or 6vdc as last longer than 8vdc and cost less. 8vdc batteries really are not up to the heavy use a Ccar has.? It'll work but not as well or long. ? ? ? ? ? ? ? ? ? ? ?Remember these are marked up 60% of list so lots of bargaining room.? ?My favorite is East Penn/Deka as best quality for the price. ? ? ? ? ? ? ? ? ? ? ? ?Recycling them you can get about $18 each so check recyclers for price vs what the battery shop will give you. ? ? ? ? ? ? ? ? ? ? ? ? If buying new insist on getting them? from the same pallet/batch with matching batch numbers so they equalize better, will live longer, give no trouble.? ? ? ? ? ? ? ? ? ? ? ? ? This is straight from the person that designed most Trojan and USBattery brands that schooled me? and my 40 yrs lead experience, 27 in EVs.? Though now I run Volt lithium for 2.5 yrs now without a BMS as most do without a problem and since I buy in bulk to sell, cheaper.. ? ? ? ? ? ? ? ? ? ? ? ? ?Jerry Dycus
On Monday, August 3, 2020, 07:45:12 AM PDT, Dave Brice <dbrice3721@...> wrote:
I'm sure we can help you Roy. To begin,? a fully charged 8v battery should be closer to 8.5v each with a total 48v pack fully charged around 51v. At 7.5v, those batteries are very low. I'd try hooking them all up together and letting the delta do its work. It will likely take a few charges to start balancing them so keep an eye on the water level. Do you know if your car still uses the contractors or has been updated to a modern controller? On Mon, Aug 3, 2020, 9:59 AM Roy Egan via <lowbid2001=[email protected]> wrote: Have 1980...got six batteries..8v got charged to 7.5v+ ea |
|
Re: Need Help getting 1980 Commuta going
I'm not seeing the full picture perhaps?? All I see is the speedo. Might be a fault of my phone?? White wires in the dash are interesting. perhaps there was a sale on white wire.? On mine every dash light uses a white wire for both positive and negative, and a few others as well.? ?You probably have another 12v battery as well, or a voltage reducer,? since 8v batteries dont make 12v as nice as 6v do tapped of the main pack.? On Mon, Aug 3, 2020, 10:55 AM Roy Egan via <lowbid2001=[email protected]> wrote: On Mon, Aug 3, 2020 at 07:45 AM, Dave Brice wrote: |
|
Re: Need Help getting 1980 Commuta going
I'm sure we can help you Roy. To begin,? a fully charged 8v battery should be closer to 8.5v each with a total 48v pack fully charged around 51v. At 7.5v, those batteries are very low. I'd try hooking them all up together and letting the delta do its work. It will likely take a few charges to start balancing them so keep an eye on the water level. Do you know if your car still uses the contractors or has been updated to a modern controller? On Mon, Aug 3, 2020, 9:59 AM Roy Egan via <lowbid2001=[email protected]> wrote: Have 1980...got six batteries..8v got charged to 7.5v+ ea |
|
Need Help getting 1980 Commuta going
Have 1980...got six batteries..8v got charged to 7.5v+ ea
My car was previously owned by a Boston area tech college. Dash is apart ...charger is out ....took batteries out to charge individually Car rolls and stops...has 4200 miles on it bought Delta charger Got the manuals and been to youtube.....familiar with combustion vehicles....this golf cart has me perplexed...wondered if any of you out there have the time and patience spoon feed me to the promised land....... to speed up the process can call or text Thank You Roy in MA 01702 iphone 508 472 4207 |
|
Re: Cars for sale (Was: FYI)
Yes, and I have a 1981 Comuta Car in central Vermont for sale - decent batteries, Curtis controller, modern 3-phase charger, runs with some fussing, needs the usual brake job..$1600.? Pictures attached, more on request. Bob A. Bobattwo@... or call/text 802-505-3996 |
Roy Egan
to navigate to use esc to dismiss