GearKit — owner’s manual Sheet T12 · Tools
Tools · Tool 12

Battery storage helper

A lithium battery left full or flat in a drawer wears out faster than one in use. Pick the device and get the makers’ storage level, the temperature, and a reminder that pauses while you use it.

Your schedule

Top it up every 3 months in storage

1
Fig. 1 — Camera drone 1 job
  1. 1
    Fully charge flight batteriesEvery 3 months · By dateDJI says fully charge each flight battery at least once every three months; the Mavic 2 guide adds a full discharge too.
  • Store it at about 40–60 % (DJI batteries drop to it on their own after 9–10 idle days), at 22–28 °C for storage longer than three months, never below −10 °C or above 45 °C (DJI).
  • In GearKit this is an only while stored job: it pauses while the item is a daily driver and runs once you put it away.
  • Don’t store a DJI battery empty for long: it can over-discharge and be damaged beyond repair. Before a flight, bring it out of storage and charge it fully.
  • Battery University (independent): a lithium-cobalt cell kept a year at 25 °C keeps about 96 % of its capacity at 40 % charge, but about 80 % kept full.

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How it works

Each device takes its maker’s own storage advice: the charge level, the temperature, and how often to top up. Where a maker gives the level but no interval (Bosch tools, DeWalt, Bosch and Shimano e-bikes, LiPo packs), the interval is the closest maker figure or our suggestion, and the why says which.

Lithium batteries age fastest full and hot, and can fall into a deep discharge they don’t recover from when left empty; a partial charge in a cool room is the common thread. DeWalt is the one maker that says store full.

Sources

  1. 1
    DJI Air 3 User Manual v1.6 DJI · Maker · Checked Oct 18, 2026
  2. 2
    Mavic 2 Intelligent Flight Battery Safety Guidelines DJI · Maker · Checked Oct 18, 2026
  3. 3
    GENS ACE/TATTU Lithium Polymer Battery Operating Instructions Gens Ace / Tattu (Grepow) · Maker · Checked Oct 18, 2026
  4. 4
    EOS R5 Product Manual: Handling Precautions Canon · Maker · Checked Oct 18, 2026
  5. 5
    Z8 Online Manual: Caring for the Camera and Battery: Cautions Nikon · Maker · Checked Oct 18, 2026
  6. 6
  7. 7
    FUJIFILM X-T5 For Your Safety Fujifilm · Maker · Checked Oct 18, 2026
  8. 8
  9. 9
    M18 Battery Pack safety warnings and maintenance Milwaukee Tool · Maker · Checked Oct 18, 2026
  10. 10
    GAL 12V/18V-80 FAQ Bosch Power Tools · Maker · Checked Oct 18, 2026
  11. 11
    DCB1104 12V/20V Max 4 Amp Charger manual DeWalt · Maker · Checked Oct 18, 2026
  12. 12
    Battery care and maintenance Bosch eBike Systems · Maker · Checked Oct 18, 2026
  13. 13
    FAQ - SHIMANO E-BIKE SYSTEMS (S-6540) Shimano · Maker · Checked Oct 18, 2026
  14. 14
    Ninebot KickScooter F2 Product Manual - Recommended Maintenance Schedule Segway-Ninebot · Maker · Checked Oct 18, 2026
  15. 15
    Ninebot KickScooter G30LP User Manual Segway-Ninebot · Maker · Checked Oct 18, 2026
  16. 16
    Xiaomi Electric Scooter 4 Lite (2nd Gen) FAQ Xiaomi · Maker · Checked Oct 18, 2026
  17. 17
    Year-Round Battery Care Tips VARTA · Maker · Checked Oct 18, 2026
  18. 18
    Maximizing Battery Life and Lifespan Apple · Maker · Checked Oct 18, 2026
  19. 19
  20. 20
    PlayStation 5 Instruction Manual CFI-2116 Sony Interactive Entertainment · Maker · Checked Oct 18, 2026
  21. 21
    Roborock S8+ User Manual (p. 13) Roborock · Maker · Checked Oct 18, 2026
  22. 22
    BU-702: How to Store Batteries Battery University (Cadex) · Independent · Checked Oct 18, 2026

Starting points from the makers’ manuals, not a substitute for yours. Where your manual says otherwise, it wins.