Laptop Battery Management

 1# Install TLP
 2sudo apt install tlp tlp-rdw
 3
 4# Configure charging thresholds
 5sudo tee /etc/tlp.conf <<EOF
 6# Battery charge thresholds (ThinkPad only)
 7START_CHARGE_THRESH_BAT0=75
 8STOP_CHARGE_THRESH_BAT0=80
 9
10START_CHARGE_THRESH_BAT1=75
11STOP_CHARGE_THRESH_BAT1=80
12EOF
13
14# Start TLP
15sudo tlp start
16
17# Check status
18sudo tlp-stat -b

 1# Set charge threshold (ThinkPad)
 2echo 80 | sudo tee /sys/class/power_supply/BAT0/charge_control_end_threshold
 3echo 75 | sudo tee /sys/class/power_supply/BAT0/charge_control_start_threshold
 4
 5# Make permanent (add to /etc/rc.local or systemd)
 6sudo tee /etc/systemd/system/battery-threshold.service <<EOF
 7[Unit]
 8Description=Set battery charge threshold
 9After=multi-user.target
10
11[Service]
12Type=oneshot
13ExecStart=/bin/bash -c 'echo 80 > /sys/class/power_supply/BAT0/charge_control_end_threshold'
14ExecStart=/bin/bash -c 'echo 75 > /sys/class/power_supply/BAT0/charge_control_start_threshold'
15
16[Install]
17WantedBy=multi-user.target
18EOF
19
20sudo systemctl enable battery-threshold
21sudo systemctl start battery-threshold

1# Install Dell command tools
2sudo apt install libsmbios-bin
3
4# Set charging mode
5sudo smbios-battery-ctl --set-custom-charge-interval=75-80
6
7# Check current settings
8sudo smbios-battery-ctl --get-charging-cfg

1# ASUS laptops
2echo 80 | sudo tee /sys/class/power_supply/BAT0/charge_control_end_threshold
3
4# Check current threshold
5cat /sys/class/power_supply/BAT0/charge_control_end_threshold

 1# Using Lenovo Vantage app (GUI)
 2# 1. Install Lenovo Vantage from Microsoft Store
 3# 2. Open Lenovo Vantage
 4# 3. Go to Device > Power
 5# 4. Enable "Conservation Mode" (charges to 55-60%)
 6# OR
 7# 5. Set custom threshold under "Battery Charge Threshold"
 8
 9# PowerShell (requires Lenovo System Interface Foundation)
10# Check if available
11Get-WmiObject -Namespace root\WMI -Class Lenovo_SetBatteryChargeThreshold
12
13# Set threshold (requires admin)
14# Note: This varies by model, use Lenovo Vantage for reliability

1# Using Dell Power Manager (GUI)
2# 1. Install Dell Power Manager
3# 2. Open Dell Power Manager
4# 3. Go to Battery Settings
5# 4. Select "Primarily AC Use" or "Custom" (80%)
6
7# Check battery info
8powercfg /batteryreport
9# Open: C:\Windows\system32\battery-report.html

1# ASUS Battery Health Charging
2# 1. Install MyASUS from Microsoft Store
3# 2. Open MyASUS > Customization > Battery Health Charging
4# 3. Select mode:
5#    - Full Capacity Mode (100%)
6#    - Balanced Mode (80%)
7#    - Maximum Lifespan Mode (60%)

1# macOS Monterey+ has built-in battery optimization
2# System Preferences > Battery > Battery Health > Manage battery longevity
3
4# Check battery status
5pmset -g batt
6
7# For older macOS, use AlDente (third-party app)
8# https://github.com/davidwernhart/AlDente

 1# Check current charge level
 2cat /sys/class/power_supply/BAT0/capacity
 3
 4# Check charging status
 5cat /sys/class/power_supply/BAT0/status
 6
 7# Monitor battery
 8watch -n 2 'cat /sys/class/power_supply/BAT0/capacity'
 9
10# Detailed battery info
11upower -i /org/freedesktop/UPower/devices/battery_BAT0

1# Battery report
2powercfg /batteryreport
3
4# Check battery health
5powercfg /batteryreport /output "C:\battery-report.html"
6
7# Battery status
8WMIC Path Win32_Battery Get EstimatedChargeRemaining