Tesla's LFP (iron) batteries compared. Which one should you buy?

For the first time, you have a choice of battery for your new Tesla. Not battery size, you've always had that choice. Now you have a choice of which chemical elements you want. Here are some thoughts about how you can choose intelligently. It all depends on your financial situation, your plans for long-distance travel, and the geography of your area.

Elon Musk explains Tesla's LFP Battery strategy for US Model 3 SR+.

There's a delay in delivery times for the Model 3 SR+. This is August 2021. Delivery dates are some time in 2022. If you're buying one of the more expensive models or one of the bigger battery sizes, you can take delivery sooner, but the Model 3 SR+ might be the one you want. It's the one I bought. I knew that road trips would take a bit longer with the shorter-range battery since I'd have to pull off the road to charge more often. So far, I haven't had the opportunity to take a multi-day road trip. There's a pandemic after all. But I knew that would eventually become an issue. I really like road trips. But I have to say, even when I took lots of road trips, most of my driving was local.

Had I opted for the long-range Model 3, I'd have paid an extra ten thousand dollars in order to get 90 miles of extra range. That extra ninety miles of range would come into play only 30 or 40 days each year, and the time it would save me would be about an hour each day of a multi-day road trip. It didn't make financial sense.

Now that Tesla is experiencing the same production delays as are all the other auto manufacturers, they're giving their shorter delivery dates to buyers of the more expensive, read higher profit, models. But they're making an exception and giving shorter delivery dates if you buy a Tesla with an LFP battery rather than an NCA battery.

So what's the difference? Both batteries are actually lithium-ion batteries. They both use lithium. So that's not a difference. But the NCA battery uses nickel, cobalt, and aluminum in addition to lithium. The LFP battery uses Iron and Phosphate (phosphorus combined with oxygen) in addition to lithium. The main differences for you to consider are that the LFP battery has a slightly shorter range, 253 miles, as opposed to the NCA battery, 263 miles. But that slight difference in range is deceptive. The NCA battery probably shouldn't be charged to 100%. Fully charging the battery causes damage to the battery making it likely to deteriorate over the years of ownership. It's perfectly fine to charge the LFP battery to 100% so the driver experience is pretty much the same except for a couple caveats.

The LFP battery is heavier. That's why the range is slightly lower on the ordinary battery test cycle. The extra weight causes extra rolling resistance. That's why the range is reduced. There's probably also some extra wear on the tires. The problems of extra weight and extra rolling resistance are probably not all that bothersome for most drivers.

But, if you live in an area where there are lots of hills so that you're changing your elevation every time you drive, you're going to notice a much more pronounced decrease in range with the heavier LFP battery. You can experience the difference more intimately by getting a wagon or a wheelbarrow. Roll it around on level ground. Then put a heavy object in it and roll it around some more. You'll notice a bit more rolling resistance, but you'll be able to deal with the extra rolling resistance easily.

Now do that same experiment on a hill. Pull the wagon or push the wheelbarrow up the hill empty. No problem, right? Then put in the heavy object and go up the hill again. Big difference. Your car feels the same way. You'll get a bit of extra regenerative braking going down the hill with the heavier battery, but it won't be enough to make up the difference. The second law of thermodynamics causes that. That pesky high school physics topic, entropy, strikes again.

LFP batteries are also much more environmentally friendly.

There's also one more issue, cold weather.

LFP batteries charge more slowly in cold weather than NCA batteries and their range decreases somewhat more than NCA batteries in cold weather. Keep in mind that both NCA and LFP do worse in cold weather. It's just that LFP batteries get more of a cold weather effect than NCA batteries. When you're on a road trip and navigating to a Supercharger, your car will prewarm its batteries. That will alleviate the slower charging problem to some extent, but you'll be at the Supercharger six or seven minutes longer in winter with LFP batteries. That will be a problem if you plan to use your car in such a way as to need to do lots of cold weather supercharging. It won't matter at all if you're just going to charge your car overnight in your garage.

So flatlanders will be fine with the LFP battery. If you live in a hilly area, you may want to wait for the NCA-equipped Tesla Model 3 SR+. But remember, the lower range problem is only a problem for people planning to do lots of mountain driving. In that case, you actually ought to invest the extra $10K in the long range Model 3.

One last issue about the LFP battery. Remember, earlier in this article, I mentioned that you shouldn't fill the NCA battery up to 100% charge, but you should fill the LFP battery up to 100%? That's true at home, but it's not true on road trips. On road trips, you want to minimize the amount of time you're stopped. The way to do that is to never charge the battery to 100% no matter which kind of battery you have. When you plug your car in at a modern high voltage supercharger, you'll see your car adding four to five hundred miles per hour of connection. That doesn't mean you'll be up to 100% in a half hour. You won't. As the battery gets charged, the rate of charge drops significantly for both the LFP and the NCA batteries. Once you get above 80%, the battery charges very slowly. So figure out how much charge you need to get you to the next place you're going to charge up and give yourself enough charge to get you there with a twenty or thirty mile cushion. Charging your battery more than that is a waste of time. Your travel time.

Tesla's Battery Day

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Tesla Cuts Newly Formed Content and Ads Team, Musk says Ads Were “Too Generic”

Tesla eliminated a newly formed marketing team of about 40 employees as part of its global layoffs, Bloomberg reported on Monday morning. On X, Elon Musk said the ads created by the team were “far too generic” adding that they would apply to “any car”.

Exactly. The ads were far too generic – could’ve been any car.

— Elon Musk (@elonmusk) April 22, 2024

The team was led by Alexander Ingram who joined Tesla in August 2019 as Communication lead for Automotive. After a few different roles connected with content and social media, Ingram was promoted last December to Senior Manager of Global Growth Content. In the new role, he was leading a global team of creatives focused on Tesla's first ads, as well as social media.

Ingram put out some excellent behind-the-scenes videos on Tesla’s technological advancements such as the one below explaining Tesla’s single casting.

Tesla’s Advertisement Strategy

At Tesla’s 2023 annual meeting of shareholders, Elon Musk said that the company would “try a little advertising and see how it goes”. Since then, Tesla ads have been seen in Google search results and on YouTube.

In Tesla’s proxy statement filed last week, it is seen that the automaker has spent around $200,000 on X-advertising through February 2024.

“As part of a multi-platform advertising campaign, Tesla also directly or indirectly purchased advertising on X, which totaled approximately $0.2 million through February 2024”

Bloomberg’s source added that Tesla still has a smaller marketing team in Europe.

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Tesla Is Ending Its Current Referral Program; New Version Will Arrive in “A Few Months”

Tesla's Referral Program

Not a Tesla App

Tesla shared on X that it’s ending its current referral program globally by the end of April. It’ll be replaced by a new one, but that is still “a few months away”, according to CEO Elon Musk.

When Musk was asked if the current credits would be lost, Musk responded by saying “No, just that new credits would not be earned until we launch a future referral program.” That means there’ll be a gap of a couple of months when owners will not be able to earn referral credits.

Tesla was always famous for relying on its community to promote its vehicles rather than spending millions (or even billions) in ad campaigns.

Through Tesla’s referral program — which started back in 2015— customers have been earning referral credits by having friends use their referral link when ordering a Tesla product or taking their first demo drive. At the time, it started with a direct $1,000 prize for the referrer but later evolved to a more complex system with different tiers and points.

Prizes have changed a lot over the years

In its latest version, scheduled to end by the end of the month, Tesla models (S, X, and Y), along with Powerwall, solar panels, and solar roofs, are available for purchase using a referral link. In this version, owners can redeem credits from merchandise to software upgrades for their vehicles. They can even redeem credits for several months free of Premium Connectivity or FSD.

Our current referral program benefits will end after April 30 in all markets

— Tesla North America (@tesla_na) April 20, 2024

The Evolution of the Referral Program

Tesla’s first referral program was released in July 2015 where customers who referred new buyers would receive $1,000 for every new Tesla Model S delivered. For those who were able to accrue 5 or 10 referrals for the US automaker, Tesla raised the bar and offered invitations to the opening of its Giga Factories or even a fully loaded Model X.

Over the first 2 years, Tesla significantly increased the value of the prizes and even offered free or discounted Roadsters with enough referrals. However, in 2019, Elon Musk decided to stop amid cost concerns.

The referral program was re-launched in late 2019 offering new buyers free supercharging for a period of time, FSD access, premium connectivity, or $500 off a new vehicle.

What’s Next

Given the considerable gap of “a few months” between the current program and the next one, it is expected that Tesla will bring a new structure with updated awards focused on minimizing Tesla’s cost while increasing the brand’s awareness.

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