I'm ElectricLove on the TMC forum, I've seen your work sir! Very well done, love it all! I've done many a tesla "tear-down", especially in the Roadsters actually...
Be a good idea to remove the earth connection before doing anything else!! Then you wouldn't have to worry about shorting the positive terminal to anything... ;)
Well explained but it would have been useful to see the tools needed (in the frunk at the start) that are needed. What is that rachet driver called to remove the batter nuts?
I have to assume this is a LiFePO4 battery. Does it have any protection electronics (especially for overdischarge... a huge killer of lithium, even LiFePO4. s.
Is the car itself that recognizes the different battery chemistry and charges is accordingly, or the battery has the electronics internally to manage the charging process, and make it look like a regular Lead-Acid battery for the car?
That's outrageous, simple. easy job for a few. This is a three beer project, and the hot wire? live is usually identified RED. I thought my vrod was a pain to change the battery, which is two beer
+Sean Scherer Thank you for the video. Very informative. Out of curiosity I have to ask how the Ah of the new Li-ion battery compares with the old lead acid and what is its expected in service life time ? Just what are the weights of the old and new batteries ?
The way Lithium is rated is very different than Lead Acid. The rated Ah is pretty much the same between the two, however the Lead battery is rated at a MUCH lower discharge rate, so it is misleading. Depending on usage (in this case, the tesla) it is about 25-40% higher capacity than the OEM AGM battery.
What ? If the Ah is the same how can it have 25-40% higher capacity. The capacity (in Wh) is just 12 times the Ah rating (I only used Ah because it is traditional with automotive batteries where the terminal voltage is known, in this case 12V). The fact that the Li-ion battery is capable of supporting a higher discharge current while not a bad thing would seem to me to have no utility in this application, after all it does not have to supply cranking amps to turn an engine over.
The reason it is higher and that I cited 25-40% is that you can't compare apples to apples, if you cite an exact discharge rate then a comparison can be made for how long the battery will run and a calculation can be made to determine the amount of energy that was discharged. In the TESLA vehicles the loads on the 12V battery vary but can be 100W; at 100W the AGM battery will yield an Ah capacity of something like 20 and the BattMobile Lithium will yield an Ah capacity around 30. If you operate under a much lower discharge rate (say 20W) the AGM will increase in capacity, but so will the Lithium; the BattMobile Lithium battery will yield around 33-34Ah at a 20W load whereas the AGM battery will yield around 30-31Ah... The difference is much smaller with low loads... Anyways, the short answer is; you can't really make an accurate statement to compare the capacity of the two unless you also define the load. And, actually, the AGM provides higher cranking amps than the lithium, we have our batteries protected to not exceed a certain level of discharge. But, like you mentioned, cranking amps is no longer a "thing" with electric vehicles, that's only relevant for engine starting really...
If im understanding your video's correctly, you sell 12V replacement batteries for the TESLA vehicles? If so, will you be doing it for the Model 3? (i get mines in November)
We will, as soon as we have a Model 3 in hand so we can identify if it will be the same battery or if we need to make modifications to it. We will be testing soon! (end of this month, tentatively)
Don’t buy ohmmu 12v battery. That costed me $640 to fix the low voltage battery replacement message. Fortunately return window still open and returned the battery but they charged $38(return label) + $90 (restocking fee). My 20 mx working fine with original battery. Here’s what Tesla said Technician inspected vehicle for customer concern. Technician found upon inspection that the low voltage circuit of the 12 volt battery that vehicle has an aftermarket lithium battery that is causing the LV battery repeatedly overcharging. The LV battery has degraded over time and needs replacement with a proper lead acid original equipment battery. Don’t waste your money and time.
nice vid but i think this guy doesn't know anything about voltage spike. removing a battery from your electric vehicle with out a proper shut down can damage any component with out a proper shut down. i would suggest to ask tesla first before doing this.
I think the idea is your getting it serviced and it's done then. Plus the time you save not having to do anything for like 5 years probably is either spent here or justified
I want to change my 70d battery but Tesla have said the following. Hi Mike its £145 for the battery or £232 fitted. You can pick it up by all means we however definitely would not recommend doing yourself. the HV battery serves the 12v and needs a shutdown to take the battery off. Also if your battery is red and black we can do a like for like swap, if it’s a full red battery it will also need configuring, but we will not know this at this stage. Do you think this is scare tactics? Mike Regards Adam
Your overall professionalism needs work. The website sucks and your videos suck too in the professional category. If you want a high end market to buy a brand in which they never heard of, at least treat your brand the way it should be, with class. A $400 lithium 12 V battery but no side by side comparison to a lead battery doesn't help me convert or become a MQL.
Sean Scherer try researching marketing and advertising dos and don't. Create competitor matrixes, use search engine land Jeremy said ad week... list goes on. Ecommerce dudes....
Nice job bud. If you like taking these things apart checkout my page
I'm ElectricLove on the TMC forum, I've seen your work sir! Very well done, love it all! I've done many a tesla "tear-down", especially in the Roadsters actually...
2:35 You don't need to unscrew the height adjusters. The trim pulls over them easily.
But you do need to unscrew it when you put the trim back on.
Thanks, very informative, but damn you couldn't clean up some dirt before you re-installed?
Be a good idea to remove the earth connection before doing anything else!! Then you wouldn't have to worry about shorting the positive terminal to anything... ;)
No risk, No reward.
Well explained but it would have been useful to see the tools needed (in the frunk at the start) that are needed. What is that rachet driver called to remove the batter nuts?
a socket wrench
Really!?! Simple tools.
If u have to ask that question please don't touch a car
Great vid, keep posting
I have to assume this is a LiFePO4 battery. Does it have any protection electronics (especially for overdischarge... a huge killer of lithium, even LiFePO4. s.
great help of your video !!! thanks
Is the car itself that recognizes the different battery chemistry and charges is accordingly, or the battery has the electronics internally to manage the charging process, and make it look like a regular Lead-Acid battery for the car?
Internal to the battery, the car is welcome to treat it like any other C&D DCS-33RIT battery (the OEM model battery)
All other video's I seen remove the fireman's safety wire first before disconnecting the 12v battery
That's outrageous, simple. easy job for a few. This is a three beer project, and the hot wire? live is usually identified RED.
I thought my vrod was a pain to change the battery, which is two beer
Thanks for the video and demo.
+Sean Scherer
Thank you for the video. Very informative. Out of curiosity I have to ask how the Ah of the new Li-ion battery compares with the old lead acid and what is its expected in service life time ? Just what are the weights of the old and new batteries ?
The way Lithium is rated is very different than Lead Acid. The rated Ah is pretty much the same between the two, however the Lead battery is rated at a MUCH lower discharge rate, so it is misleading. Depending on usage (in this case, the tesla) it is about 25-40% higher capacity than the OEM AGM battery.
What ? If the Ah is the same how can it have 25-40% higher capacity. The capacity (in Wh) is just 12 times the Ah rating (I only used Ah because it is traditional with automotive batteries where the terminal voltage is known, in this case 12V). The fact that the Li-ion battery is capable of supporting a higher discharge current while not a bad thing would seem to me to have no utility in this application, after all it does not have to supply cranking amps to turn an engine over.
The reason it is higher and that I cited 25-40% is that you can't compare apples to apples, if you cite an exact discharge rate then a comparison can be made for how long the battery will run and a calculation can be made to determine the amount of energy that was discharged. In the TESLA vehicles the loads on the 12V battery vary but can be 100W; at 100W the AGM battery will yield an Ah capacity of something like 20 and the BattMobile Lithium will yield an Ah capacity around 30. If you operate under a much lower discharge rate (say 20W) the AGM will increase in capacity, but so will the Lithium; the BattMobile Lithium battery will yield around 33-34Ah at a 20W load whereas the AGM battery will yield around 30-31Ah... The difference is much smaller with low loads... Anyways, the short answer is; you can't really make an accurate statement to compare the capacity of the two unless you also define the load. And, actually, the AGM provides higher cranking amps than the lithium, we have our batteries protected to not exceed a certain level of discharge. But, like you mentioned, cranking amps is no longer a "thing" with electric vehicles, that's only relevant for engine starting really...
How about cold weather though? We have temps here of -10 from time to time. Winters are long and cold.
Is it true you can't replace parts on a Tesla without registering this in the software of the car (Tesla Toolbox)?
Are you guys Tesla authorized 12v battery provider?
Europa - Czech Republic - buy in EU ??
If im understanding your video's correctly, you sell 12V replacement batteries for the TESLA vehicles?
If so, will you be doing it for the Model 3? (i get mines in November)
We will, as soon as we have a Model 3 in hand so we can identify if it will be the same battery or if we need to make modifications to it. We will be testing soon! (end of this month, tentatively)
We now have the Model 3 version ready to go! www.ohmmu.com
Do you have a website? I would be interested in buying a battery when it is time to replace my oem.
Of course! www.BattMobileBatteries.com
@@OhmmuEnergylithium replacement for agm on 2012 Tesla s
Why don't you just call it a bonnet?
Don’t buy ohmmu 12v battery. That costed me $640 to fix the low voltage battery replacement message. Fortunately return window still open and returned the battery but they charged $38(return label) + $90 (restocking fee). My 20 mx working fine with original battery. Here’s what Tesla said Technician inspected vehicle for customer concern. Technician found upon
inspection that the low voltage circuit of the 12 volt battery that vehicle has an aftermarket lithium
battery that is causing the LV battery repeatedly overcharging. The LV battery has degraded over
time and needs replacement with a proper lead acid original equipment battery.
Don’t waste your money and time.
why the glasses?
Idk. Seems kind of unprofessional for a 90K + car.
Shot on potato. :(
Yeah, sorry, not the best...
nice vid but i think this guy doesn't know anything about voltage spike. removing a battery from your electric vehicle with out a proper shut down can damage any component with out a proper shut down. i would suggest to ask tesla first before doing this.
Way to many steps to replace a battery. A sign of bad design
not really. planning on replacing your batter once a year?
I think the idea is your getting it serviced and it's done then.
Plus the time you save not having to do anything for like 5 years probably is either spent here or justified
TESLA NOT GOOD HARD REPLACE THE BATTERY WHY NOT DO MOORE EASY WAY.YOU TAKE ALL THE COVER WHY NOT JUST MAKE COVER ONLY TO BATTERY LAKE LEGO.
you don't need to replace those batteries often.
I want to change my 70d battery but Tesla have said the following.
Hi Mike its £145 for the battery or £232 fitted. You can pick it up by all means we however definitely would not recommend doing yourself. the HV battery serves the 12v and needs a shutdown to take the battery off. Also if your battery is red and black we can do a like for like swap, if it’s a full red battery it will also need configuring, but we will not know this at this stage.
Do you think this is scare tactics?
Mike
Regards
Adam
Your overall professionalism needs work. The website sucks and your videos suck too in the professional category. If you want a high end market to buy a brand in which they never heard of, at least treat your brand the way it should be, with class. A $400 lithium 12 V battery but no side by side comparison to a lead battery doesn't help me convert or become a MQL.
I totally agree! I need help in this department as it is not in my wheel house...
Sean Scherer try researching marketing and advertising dos and don't. Create competitor matrixes, use search engine land Jeremy said ad week... list goes on. Ecommerce dudes....