Selecting the Right Battery Size

This guide assists in selecting the battery for your vehicle! (Sep-2020 update)

Pick the smallest battery if your budget is already pushed to the limit for the base car.

Pick the largest battery if the cost is unimportant to you.

Pick the largest battery if the best performance is important to you. Performance models do have a little less range than non-performance models with the same size battery.

For most of us, we have a budget and want to know which battery fits our needs best without breaking the bank.  Like ICE cars, there is some degradation over time. While an ICE car’s range and efficiency deteriorates slowly over its life, a Tesla has a little degradation of the battery in the first 60K miles, then less beyond that.

Below we show every Tesla model, along with the expected average battery degradation over time. The table uses EPA and estimated EPA values published by Tesla.  The S and X ranges are for the upgraded motors in cars ordered on 24-Apr-2019 or later. A minor adjustment upwards was made by Tesla in November 2019 on some varients. 

New Cars

Model	Sub Model	EPA, new	60K miles*	120K miles*
S	Long Range AWD	373	353	345
S	Performance AWD	348	329	322
X	Long Range AWD	328	310	303
X	Performance AWD	305	288	282
Y	Long Range	300	284	278
Y	Dual Motor AWD	280	265	259
Y	Performance AWD	280	265	259
3	Standard Range	220	208	204
3	Standard Range Plus	250	236	231
3	Long Range AWD	310	293	287
3	Performance AWD	322	304	298

Discontinued Cars (used market or CPOs)

Model	Sub Model	EPA, new	60K miles*	120K miles*
S	40	139	131	128
S	60	210	199	194
S	60D	218	206	201
S	70	230	218	213
S	70D	240	227	222
S	75	249	236	231
S	75D	259	245	240
S	85	265	251	245
S	85D	272	257	252
S	P85	265	251	245
S	P85D	253	239	234
S	90D	294	278	272
S	P90D	270	255	250
S	Standard Range AWD**	270	255	250
S	Standard Range AWD¤	285	264	264
S	Long Range AWD***	335	317	310
S	Performance AWD***	315	298	292
X	60D	200	189	185
X	70D	220	208	204
X	75D	236	223	219
X	90D	257	243	238
X	P90D	250	237	232
X	Long Range AWD***	295	279	273
X	Standard Range AWD¤	250	236	231
X	Performance AWD***	289	273	268
3	Medium Range RWD	264	250	244
3	Long Range RWD	325	307	301

* Degradation averages 5.4% at 60K miles, and 7.4% at 120K miles on S/X. Reported by owners as of Feb-2019.  Model 3 uses a different battery, so the degradation may differ. We suspect degradation will be less than the S/X.

** Prior to May-April 2019
¤ Between May and July 2019
*** Previously called 100D or P100D, also Prior to May-April 2019

What range do you really need? First, we assume you hare home charging. If not, that adds some complications as you need to figure out where and how often you plan to charge. At home, you should be able to fully charge each night. While you can charge to 100% anytime, note that Tesla recommends a 90% charge to improve battery longevity unless you need it for longer trips. You shouldn’t worry much about this, and use 100% whenever you need to.

Step through each of these scenarios and check what range is necessary:

• Home charging, getting to work and back. Add some miles for typical side trips such as lunch and grocery shopping.
• Longer trips you take to family or friends. Check if you charge at your destination or perhaps at Superchargers along the way. Only note the longest segment – such as from your home to the first Supercharger.
• Vacations – Do you fly or drive? If driving, figure out the typical distances and stops you may need to take at Superchargers. If you need extreme range (driving outside the Supercharger network for long periods), would a 2^nd car you own be a better solution? If so, ignore that long trip for EV distance.  Also, consider how frequent you take a long vacation. You may find it cheaper to rent a car for that rare trip than buy a larger battery than you’ll never need for the rest of the year.

Some adjustments may be necessary if you travel at very high speeds for long distances, drive in cold or hot weather, or have the larger wheels (which are not as efficient).  The EPA numbers are roughly based on travel at an average speed of 65 mph on a flat level surface without headwinds and 70 degrees outside.

It may seem overly complicated, but there are really no bad choices and plenty of good choices. Many owners are happy with the smallest battery in the 200+ mile range. Only you can access which battery is best for you and meets your needs.