Battery storage mode

Overview

LiPo storage voltage — left fully charged too long.

DJI Intelligent Battery, LiPo/LiIon FPV packs, ISDT/Q6 charger, XT30/XT60.

Symptoms

Typical "Battery storage mode" signs in flight, app or OSD:

• DJI auto discharge
• Cells unbalanced after storage
• Reduced capacity
• Log cycle count and cell voltage after each flight.

Common causes

Before replacing parts, rule out software, mechanical and environmental causes:

• Stored at 100%
• No storage mode
• Months without use

Tools needed

Prepare before diagnostics — saves time in the field:

• Multimeter
• LiPo storage bag
• Balance charger with cell readout

Step-by-step fix

Work safely: battery off when working on ESC/motors; props removed; after repair — VLOS test flight.

• Storage 3.8 V/cell (DJI auto-storage after N days).
• Balance charge before next flight season.
• LiPo bag; cool dry place.

Additional diagnostics

Log cycle count and cell voltage after each flight.

IR test on aged LiPo — uneven resistance = replace.

Cold battery — slower GPS and voltage sag.

When to contact service

If any of the following apply — do not fly and contact authorised service:

• Battery swollen, smells or smokes — dispose immediately.
• Cell below 2.5 V or short — do not charge.
• DJI BMS error after several attempts — use OEM battery.

Prevention

Prevention reduces failure risk and supports EASA Open / VLOS compliance:

• Storage voltage after each session

Frequently asked questions

Is it safe to fly with "Battery storage mode"?

No if the fault affects navigation, power, ESC or link. Fix on the ground first, then conduct a VLOS test flight in open area.

How long does diagnosis take?

Most “Battery storage mode” cases — 15–45 min on the ground. Complex ones (firmware, hardware) may need 1–2 h and service.

Must I register repair with the NAA?

No mandatory repair registration, but a maintenance log is recommended for commercial operations.