I converted my car 12 years ago with a 4.5 kWh system and later upgraded to Nissan Leaf batteries (18 kWh). To this day, I have no regrets-it's been a fantastic, money-saving vehicle. I’m currently in the process of adding solar panels all over the car!
Wow, this is an old video sort of. I just made a quick spreadsheet since was wondering what the cost might look like making a plug and play LiFePO4 replacement for the 14 modules in a gen 2 or gen 3 prius. Looks like really depends on the battery price. I looked at 6Ah rated 32650 cells where definitely could fit 128 cells if 9 in each module and possibly 168 if there were 12 in each module. That would double to 2.6 times the current capacity of the battery in the same package appears. Really depends on the price of the cells however and like if time and all to make the modules where if a plug and play external plugin option was designed, how to do that BMS and external charger since an internal charger would be way more hacking hassle. Something like once power was on the external charger power a commutator to disable the HV battery so not to fry anything when charging from an external source. Might be a little more circuit requirement to assure a delay as well. Though yeah, with the cheapest cells I could find, I was amazed at the potential price for a plug and play drop in design.
No BMS ... No center-of-pack safety disconnect ...open high voltage terminals ready to short out ... Yeah I've built batteries and hacked all kinds of similar things, but your efforts are laudable, but unsafe. Without a BMS you are basically riding around with a bomb. Sorry, man, but get some safety upgrades in that wonderful ride. I applaud your efforts so far.
Since he used LiFePO4 chemistry there wouldn't be any safety concern even without a BMS. But it would drastically affect the battery health in case of an over charge or discharge. Still the Prius maintains a SOC 40 to 80% on contrast to NiMH pack and he has matched match the voltage. It's a matter of cell balance which would affect the battery health over time
what i want is a checklist type this, like idk, ac->dc (full bridge rectifier) then charge controller (bc lithium ion) then fuses, and somewhere to add dc extra power source like solar or a custom mg3 (wind generator). what the minimum battery voltage must be and how to later increase mAh or kW.
@@yungextras4572 with the stack of diodes to the main battery there is no way the car would charge the new one. Only through the wall plug, except if he removed the diodes.
Nice engineering effort. Why did you conclude that it was more hassle that it's worth? This is a nice stepping stone into something great. A few questions: Do you have a schematic of your voltage doubler? Don't you think the wires from your battery pack are a bit thin? I'm guessing it's only 14-gauge.
high voltage -> low current -> low resistance-> thin wire is fine. what i want is a checklist type this, like idk, ac->dc (full bridge rectifier) then charge controller (bc lithium ion) then fuses, and somewhere to add dc extra power source like solar or a custom mg3 (wind generator). what the minimum battery voltage must be and how to later increase mAh or kW.
Just shows how Toyota hold back the fuel consumption. All models should be plug in, great Job! . I mean you don't buy any other batteries and only charge them with a petrol generator that is 40% efficient.
lyudkavsk I was wondering how much longer you were going to spin those batteries around he-he. Anyway 240 V / 3.2 V = 75 batteries, did you ever figured that?
The app is called Torque. An onboard diagnostic unit is plugged into the data port and feeds a smart phone via bluetooth. ua-cam.com/video/Y0ODDPFQL7A/v-deo.html
Everyone thinking about doing like he did should think really carefully about it first, and then do not do it. Reason being is he has nothing controlling those new cells. They are not anchored down worth a damn either. Any sort of collision and the entire car goes up in flames, (assuming the new pack doesnt just fly forward and smash in his head first.) Also there is nothing keeping all those cells in balance (Toyota doesnt balance anything either but Toy does monitor each pair of modules.) Leaving all those new cells to do "whatever" for every long will result in really serious out of balance issues and I think the weaker Toyota cells will also degrade even faster with each charging and discharging the car does to the pack(s). Also mixing Li cells with NiMh is not a good idea as they have significantly different charging characteristics. This is an interesting experiment but NOT something ordinary drivers should even contemplate doing! Pointless and really DANGEROUS!
I think it would be interesting to do this more professionally, put a second lion system, with an intelligent controller listening to manage the amperage draw between them.
@@isaaclatterell1364 Increasing the pack capacity is generally a nice idea. However even ignoring the engineering difficulties, the cost of doing this will never be recovered in fuel savings (which is the main reason people even own such cars.) Better to just go get a new car usually since Frankensteining an old hybrid this way really kills the resale value!
I converted my car 12 years ago with a 4.5 kWh system and later upgraded to Nissan Leaf batteries (18 kWh). To this day, I have no regrets-it's been a fantastic, money-saving vehicle. I’m currently in the process of adding solar panels all over the car!
Wow, this is an old video sort of. I just made a quick spreadsheet since was wondering what the cost might look like making a plug and play LiFePO4 replacement for the 14 modules in a gen 2 or gen 3 prius. Looks like really depends on the battery price. I looked at 6Ah rated 32650 cells where definitely could fit 128 cells if 9 in each module and possibly 168 if there were 12 in each module. That would double to 2.6 times the current capacity of the battery in the same package appears. Really depends on the price of the cells however and like if time and all to make the modules where if a plug and play external plugin option was designed, how to do that BMS and external charger since an internal charger would be way more hacking hassle. Something like once power was on the external charger power a commutator to disable the HV battery so not to fry anything when charging from an external source. Might be a little more circuit requirement to assure a delay as well. Though yeah, with the cheapest cells I could find, I was amazed at the potential price for a plug and play drop in design.
3:10 "One, two, three, four, .............., twenty-eight". Don't you think it would be easier to count to 4 and 7 and then do 4x7=28?
No BMS ... No center-of-pack safety disconnect ...open high voltage terminals ready to short out ... Yeah I've built batteries and hacked all kinds of similar things, but your efforts are laudable, but unsafe. Without a BMS you are basically riding around with a bomb. Sorry, man, but get some safety upgrades in that wonderful ride. I applaud your efforts so far.
I know this is old but he did say that he is going to make it safer, he was just doing this as a test until things are complete.
Since he used LiFePO4 chemistry there wouldn't be any safety concern even without a BMS.
But it would drastically affect the battery health in case of an over charge or discharge. Still the Prius maintains a SOC 40 to 80% on contrast to NiMH pack and he has matched match the voltage. It's a matter of cell balance which would affect the battery health over time
Great job! What was the final nominal and fully charged voltage of your plug-in battery pack?
Thanks!, can you tell us were to buy the batteries and spacers please?
what i want is a checklist type this, like idk, ac->dc (full bridge rectifier) then charge controller (bc lithium ion) then fuses, and somewhere to add dc extra power source like solar or a custom mg3 (wind generator). what the minimum battery voltage must be and how to later increase mAh or kW.
Does the car recharge the new pack with braking? Or can you only charge it with plugin
it is like one big battery so yes.
@@yungextras4572 with the stack of diodes to the main battery there is no way the car would charge the new one. Only through the wall plug, except if he removed the diodes.
Nice engineering effort. Why did you conclude that it was more hassle that it's worth? This is a nice stepping stone into something great. A few questions: Do you have a schematic of your voltage doubler? Don't you think the wires from your battery pack are a bit thin? I'm guessing it's only 14-gauge.
high voltage -> low current -> low resistance-> thin wire is fine. what i want is a checklist type this, like idk, ac->dc (full bridge rectifier) then charge controller (bc lithium ion) then fuses, and somewhere to add dc extra power source like solar or a custom mg3 (wind generator). what the minimum battery voltage must be and how to later increase mAh or kW.
Just shows how Toyota hold back the fuel consumption. All models should be plug in, great Job! . I mean you don't buy any other batteries and only charge them with a petrol generator that is 40% efficient.
Thanks
...
lyudkavsk
I was wondering how much longer you were going to spin those batteries around he-he.
Anyway 240 V / 3.2 V = 75 batteries, did you ever figured that?
markspc1 I can only assume he was taking into account the 4.2v max charge of those batteries.
Please post a year of the vehicle you're working on or it's nothing but clickbait
How it is going 4 Years later?
looks like he said it turned out to be more trouble than its worth lol. I'm wondering the same.
he was burnt in the same car 4 years ago
Basit Shah literally burnt??)
what is the specification of the capacitor that you used as voltage doubler ?
Did you change anything in the car since you added more capacity?
good effort ,
LOL, sandiego realistic traffic is like 10 to 15mph. Only slightly better than street driving.
Hi there, are you still around?would love to ask a question about this project for my 2012 Toyota yaris hybrid.Thx.
Peter
Hope you are aware of the dangers of DC volts over 60, much more dangerous than AC.
DC is safer as it does not mess with heart rhythm like AC does. But at this voltage for sure is dangerous.
@@KiwiMaker Rubbish, it clamps your heart and your dead.
It will blow holes in things. Light metals on fire, and kill you with enough amperage.
Nice, you got a put in a BMS though.
like a game plan at the start of the video then the actual doing of it
Whens your next video?
So you "Just" have this pack wired parallel with the stock battery ?
yes
Basically thanks
You forgot to say BASICALLY!!!
Hi did you put directly in parallel with the NiMH battery ???
minoru kurata I think no, different voltages
I know it diffent but in parallel maybe drop to a mid voltag
yeah and fuck up all the batteries packs,bad move
Could you provide the parts list?
How much it cost
what software are you using in the phone?
The app is called Torque. An onboard diagnostic unit is plugged into the data port and feeds a smart phone via bluetooth. ua-cam.com/video/Y0ODDPFQL7A/v-deo.html
just don't... this will only BBQ your computers and inverter
too much positive thinking = Negative results
nice effort but too much work for an extra 12aH
Very big consomption
Damn
Everyone thinking about doing like he did should think really carefully about it first, and then do not do it. Reason being is he has nothing controlling those new cells. They are not anchored down worth a damn either. Any sort of collision and the entire car goes up in flames, (assuming the new pack doesnt just fly forward and smash in his head first.) Also there is nothing keeping all those cells in balance (Toyota doesnt balance anything either but Toy does monitor each pair of modules.) Leaving all those new cells to do "whatever" for every long will result in really serious out of balance issues and I think the weaker Toyota cells will also degrade even faster with each charging and discharging the car does to the pack(s). Also mixing Li cells with NiMh is not a good idea as they have significantly different charging characteristics. This is an interesting experiment but NOT something ordinary drivers should even contemplate doing! Pointless and really DANGEROUS!
I think it would be interesting to do this more professionally, put a second lion system, with an intelligent controller listening to manage the amperage draw between them.
@@isaaclatterell1364 Increasing the pack capacity is generally a nice idea. However even ignoring the engineering difficulties, the cost of doing this will never be recovered in fuel savings (which is the main reason people even own such cars.) Better to just go get a new car usually since Frankensteining an old hybrid this way really kills the resale value!
Mike Lamb yeah it would cost minimum $2000 and only save you $200/year
Heh stillI