Should you charge your phone to 80% or 100%?

Track how the evidence changes as new studies are reviewed.

Confidence over time

Provider confidence is a supplied 0–100 evidence score—not probability, statistical confidence, popularity, or reader voting.

Charge to 80%Charge to 100%

Provider confidence scores over time
Date	Charge to 80%	Charge to 100%	Cumulative sources reviewed
Jul 8, 2025	61%	39%	45
Oct 12, 2025	65%	35%	50
Jan 5, 2026	69%	31%	55
Apr 2, 2026	72%	28%	59
Jul 13, 2026	74%	26%	64

Jul 13, 2026 · 9:30 AMCurrent
74% Charge to 80%26% Charge to 100%64 sources
Confidence in 80% increased as more long-term battery-aging studies were added; results still vary by device and charging habits.
Highlighted references (3 of 64)
Apr 2, 2026 · 2:15 PM
72% Charge to 80%28% Charge to 100%59 sources
New lab tests on partial charging and real-world cycling data slightly strengthened the case for stopping around 80%.
Highlighted references (3 of 59)
Jan 5, 2026 · 11:05 AM
69% Charge to 80%31% Charge to 100%55 sources
Additional manufacturer and independent-lab evidence moved confidence four points toward 80% while keeping the daily-range trade-off visible.
Highlighted references (3 of 55)
Oct 12, 2025 · 4:40 PM
65% Charge to 80%35% Charge to 100%50 sources
Updated manufacturer guidance and battery-aging summaries moved the score modestly toward 80%, while 100% remained practical for high-use days.
Highlighted references (3 of 50)
Jul 8, 2025 · 10:20 AM
61% Charge to 80%39% Charge to 100%45 sources
The initial review found a modest evidence advantage for 80%, with meaningful support for charging fully when daily range matters most.
Highlighted references (3 of 45)

Comments are community opinion and are not part of the evidence review.

Be the first to join the discussion.

Track how the evidence changes as new studies are reviewed.

Provider confidence is a supplied 0–100 evidence score—not probability, statistical confidence, popularity, or reader voting.

Charge to 80%Charge to 100%

Provider confidence scores over time
Date	Charge to 80%	Charge to 100%	Cumulative sources reviewed
Jul 8, 2025	61%	39%	45
Oct 12, 2025	65%	35%	50
Jan 5, 2026	69%	31%	55
Apr 2, 2026	72%	28%	59
Jul 13, 2026	74%	26%	64

Jul 13, 2026 · 9:30 AMCurrent
74% Charge to 80%26% Charge to 100%64 sources
Confidence in 80% increased as more long-term battery-aging studies were added; results still vary by device and charging habits.
Highlighted references (3 of 64)
Apr 2, 2026 · 2:15 PM
72% Charge to 80%28% Charge to 100%59 sources
New lab tests on partial charging and real-world cycling data slightly strengthened the case for stopping around 80%.
Highlighted references (3 of 59)
Jan 5, 2026 · 11:05 AM
69% Charge to 80%31% Charge to 100%55 sources
Additional manufacturer and independent-lab evidence moved confidence four points toward 80% while keeping the daily-range trade-off visible.
Highlighted references (3 of 55)
Oct 12, 2025 · 4:40 PM
65% Charge to 80%35% Charge to 100%50 sources
Updated manufacturer guidance and battery-aging summaries moved the score modestly toward 80%, while 100% remained practical for high-use days.
Highlighted references (3 of 50)
Jul 8, 2025 · 10:20 AM
61% Charge to 80%39% Charge to 100%45 sources
The initial review found a modest evidence advantage for 80%, with meaningful support for charging fully when daily range matters most.
Highlighted references (3 of 45)

Comments are community opinion and are not part of the evidence review.

Be the first to join the discussion.