FAA Part 107 Remote Pilot (UAG)OperationsMedium
A commercial operator's ground crew stores fully charged LiPo battery packs overnight in a metal supply cabinet next to fuel cans in the equipment hangar. What is the best practice the crew should follow instead?
- AStore the batteries fully charged to 100% to ensure they are ready for immediate use
- BStore the batteries fully discharged to 0% to eliminate any fire risk
- CStore the batteries in direct sunlight to keep them warm and improve performance
- DStore the batteries at a partial storage charge (roughly 40-60%) in a fireproof LiPo bag or container, away from flammable materials
Show answer & explanationAnswer & explanation
Correct answer: D. Store the batteries at a partial storage charge (roughly 40-60%) in a fireproof LiPo bag or container, away from flammable materials
LiPo batteries should be stored at a partial 'storage charge' level (typically 40-60%) in a fireproof container or bag, away from flammable materials, to minimize fire risk from thermal runaway. Storing fully charged or fully discharged increases stress on the cells and fire hazard.
Why the other options are wrong
- A. Full charge increases stress on cells and fire risk during storage.
- B. Fully discharging LiPo cells can permanently damage them and is not recommended.
- C. Heat and direct sunlight increase the risk of thermal runaway.
LiPo Battery Storage Safety
LiPo batteries should be stored at a partial charge (~40-60%) in fireproof containers away from flammable materials to reduce fire and degradation risk.
- Storage charge is lower than full flight charge
- Use fireproof LiPo bags/containers
- Keep away from fuel and other flammables
Memory trick: 'Half-charged, Fire-caged' for safe storage