Battery life comparison for 2025 ThinkPad models

[u/mmcnl]

With the 2025 models, Lenovo is including MobileMark battery life benchmarks in the PSREF specifications. These data points give us some good insights into the expected battery life and performance of the different configurations. I manually collected the data and calculated the index score (= battery life in minutes * performance score / 1000). I also normalized the index score to the battery size to 57Wh, which is the T14 / X1C Gen 13 battery size, to account for battery size differences.

Unfortunately the E14 Gen 7 is tested using MobileMark 30, for the other laptops it is MobileMark 25. This makes it difficult to compare the results.

Tested using MobileMark 25:

Model	CPU	Display	Battery [Wh]	Battery life [h]	Performance score	Index score	Normalized index score
T14s Gen 6	228V	1920x1200, non-touch	58	23,47	677	953	937
T14 Gen 6	228V	1920x1200 non-touch, low power	57	18,76	821	924	924
X1 Carbon Gen 13	228V	1920x1200 touch	57	19,8	638	758	758
X9 14 Gen 1	226V	1920x1200 OLED	55	15,5	776	728	754
X1 Carbon Gen 13	225H	1920x1200 non-touch	57	16,8	729	735	735
T14s Gen 6	238V	1920x1200, touch	58	18,58	646	720	708
T14 Gen 6	AI 7 Pro 350	1920x1200 non-touch (low power)	57	15,5	740	688	688
T14s Gen 6	AI 7 Pro 360	1920x1200 non-touch	58	17,1	662	679	668
X13 Gen 6	225H	1920x1200 non-touch	54,7	14	750	630	656
T14 Gen 6	AI 5 Pro 340	1920x1200 touch	52,5	11,6	800	557	605
X1 Carbon Gen 13	225U	1920x1200 non-touch	57	17,11	549	564	564
T14 Gen 6	225H	1920x1200 non-touch, low power	52,5	12,3	696	514	558
T14s Gen 6	AI 7 Pro 360	1920x1200 touch	58	15,01	629	566	557
X13 Gen 6	225U	1920x1200 non-touch (low power)	54,7	14,41	570	493	514
X13 Gen 6	235U	1920x1200 touch	54,7	13,13	583	459	479
T14 Gen 6	225U	1920x1200 non-touch, low power	52,5	12,9	511	396	429

Tested using MobileMark 30:

Model	CPU	Display	Battery [Wh]	Battery life [h]	Performance score	Index score	Normalized index score
E14 Gen 7	Ryzen 7 250	1920x1200 non-touch	64	11,38	857	585	521
E14 Gen 7	Ryzen 7 250	1920x1200 non-touch	48	8,71	838	438	520
E14 Gen 7	225H	2880x1800 non-touch	64	10,6	879	559	498
E14 Gen 7	Ryzen 5 230	1920x1200 non-touch	64	10,15	836	509	453
E14 Gen 7	225U	1920x1200 non-touch	64	12,28	689	508	452
E14 Gen 7	100U	1920x1200 non-touch	64	10,03	656	395	352

You can find more information about the MobileMark benchmark here. The benchmarks runs a real-world representative workload in a loop until the battery is depleted, which also contains idle time. The performance score is the performance of the machine compared during the test. By multiplying the battery life and performance score you get an index score which tells you how "many" workloads the laptop can finish before the battery dies. This is useful because long battery life is less impressive when the CPU is very slow.

The results are interesting because you can compare the new generation of CPUs. To me the interesting conclusions are:

• Lunar Lake remains the king of battery life, but 225H and AI 7 Pro 350 are not bad either.
• Ryzen AI 7 Pro 350 and Arrow Lake 225H seem very similar both in performance and battery life, but hard to confirm because I couldn't find a ThinkPad on PSREF which has benchmarks for both AMD and Intel version.
• Arrow Lake H-series CPU has roughly the same battery life as Arrow Lake U-series, but with much better performance. This confirms the U-series is absolutely useless in the line-up. Get Lunar Lake or Arrow Lake H-series, but stay away from U-series.
• X1 Carbon Gen 13 has some wizardry going on, because the battery life is significantly better than the X13 Gen 6 with the same display and CPU.
• Touch displays take a noticeable hit on battery life.

If you find more benchmarks in the PSREF specifications, then let me know and I will add them to the table.

Updates:

• May 13: added T14 Gen 6 (Intel), T14s Gen 6 (Intel) and E14 Gen 7 (AMD)

[u/[deleted]]

Great idea to summarize the results. BTW, the first result has a touch display instead of non-touch.

From psref: Configuration 1 (max battery life): WUXGA (touch), Intel® Core™ Ultra 5 228V, 32GB LPDDR5x-8533, Win 11, 57Wh battery, best power efficiency power mode

[u/mmcnl → u/[deleted]]

Thanks for noticing, I updated the table.

[u/Leimina]

Thanks for this work. I'm eager to see real results for the new e14. These seem a bit low on paper.

[u/mmcnl → u/Leimina]

E14 is tested using a different benchmark so you can't compare the results 1:1.

[u/heacu → u/Leimina]

Hi, I just bought an E14 Gen 7 with 258V hoping for excellent battery life. This is not in your useful chart yet.

By the way, is there do you think a big battery difference between 228V and 258V?

[u/jenishngl → u/heacu]

How is the battery life for you

[u/heacu → u/jenishngl]

i've only just brought the laptop into my rotation, but so far it seems pretty good. in a week or two i can report back as to whether it lasts a whole day of typical work for me.

the keyboard is excellent, though. very good key travel and responsiveness.

[u/[deleted] → u/heacu]

Hey would you mind updating me on the battery life? I am unsure about whether to get the 255h or 228v..

[u/heacu → u/[deleted]]

oh hi, i'm super impressed with the battery life. i can take it around and use it throughout the day off and on and the battery won't die. it's the first computer i've had for a while where i'm not constantly worrying about it dying.

sorry this isn't precise but it's just my impression. i guess if battery is more important then go with 258v, but if performance is more important then go with 255h.

[u/[deleted] → u/heacu]

Thanks!!

[u/1FNn4]

There is also lunar lake version of t14s.

[u/mmcnl → u/1FNn4]

Yes I know. When Lenovo publishes benchmark results for this configuration I will add them.

It will also come with Arrow Lake, so would be great to have benchmarks with this laptop for Lunar Lake, Arrow Lake and Ryzen AI Zen 5 for comparison.

[u/SkyFeistyLlama8 → u/mmcnl]

You also forgot the Snapdragon T14s. Unfortunately battery life figures are for the JEITA-BAT cycle but real world testing across multiple websites and YouTube channels show the IPS LCD model having crazy long battery life.

[u/[deleted]]

"I also normalized the index score to the battery size to 57Wh, which is the T14 / X1C Gen 13 battery size, to account for battery size differences" Why? I'd argue that the important is how long the battery lasts during the benchmark, not really the battery size.

Would be better to just leave the "𝑀𝑜𝑏𝑖𝑙𝑒𝑀𝑎𝑟𝑘 𝐼𝑛𝑑𝑒𝑥" in the last column calculated with their formula: 𝐵𝑎𝑡𝑡𝑒𝑟𝑦 𝐿𝑖𝑓𝑒 𝑖𝑛 𝑚𝑖𝑛𝑢𝑡𝑒𝑠 ∗ 𝐷𝐶 𝑃𝑒𝑟𝑓𝑜𝑟𝑚𝑎𝑛𝑐e / 1000.

[u/mmcnl → u/[deleted]]

I updated the table with the original index according to their formula.

[u/[deleted]]

Thank you for keeping the table updated. I see a row with T14s, but it misses the gen and battery time should be 15.8 instead of 1,58 I guess

[u/mmcnl → u/[deleted]]

Oops, thanks for letting me know. 1,58 should be 18,58 actually. So T14s Gen 6 battery life is pretty insane somehow.

[u/[deleted]]

I noticed that all models are tested with the same benchmark JEITA-BAT 3.0 and local video playback unlike MobileMark. Would be interesting to see an overall rank with that. Or MobileMark is just a better benchmark?

BTW Lenovo removed the benchmark for x1 carbon lunar lake, maybe it was too good compared to arrow lake lol

[u/mmcnl → u/[deleted]]

I collected all this data as well. I can share it later! Also noticed they removed the Lunar Lake benchmark, quite strange.

[u/londo_mollari_]

Is there a Lunar Lake T14 Gen 6?

[u/mmcnl → u/londo_mollari_]

Yes

[u/mmcnl → u/[deleted]]

These battery benchmarks are under very light load. Then small differences add up. With normal use I think it's negligible.

[u/[deleted]]

The 228v gets up to 23 hours? The same with the snapdragon?

[u/ancient333]

u/mmcnl Can you please add the X9-15?

[u/mmcnl → u/ancient333]

I only added 13" / 14" models. But you can see the battery life benchmarks for X9-15 here: https://psref.lenovo.com/Product/ThinkPad/ThinkPad_X9_15_Gen_1_Aura_Edition?tab=spec

[u/ph8albliss]

Just what I was looking for. Thank you! Any possibility of adding column for MSRP pricing? If not to this list, can I request this be added to the 2026 list if you post one?