EGbatt Guide · Logistics

A LiFePO4 pack is low-maintenance, not no-maintenance. This guide covers the rules that let you ship it legally, store it without damage, and keep it healthy for the decade it is built to last.

Updated 2026 · 6 min read · Written by EGbatt application engineers

Shipping: UN38.3 is mandatory

Every lithium battery moved by air or sea must pass UN38.3 testing and travel with the right documentation, marking and packaging (often UN-approved outer cartons, ≤ certain Wh per package). Reputable LFP vs NMC makes little difference to the rule — both are lithium. Use a carrier experienced in Class 9 and keep the test summary on file.

Storage state of charge

Store at 30–60% SoC, never full and never empty. A full pack ages slightly faster; an empty pack risks deep-discharge damage if it self-discharges. Top up to ~50% every 3–6 months if idle.

Temperature and environment

Store cool and dry (ideally 10–25 °C). Avoid direct sun and freezing. Heat is what shortens life, even while sitting.

Terminal and connection care

Keep terminals clean and torqued to spec; a loose connection makes heat and voltage drop. A dab of antioxidant paste on busbars helps in humid sites. Inspect monthly in the first season.

Balancing and health checks

The BMS balances during charge; a full top-balance every few months keeps cells tight. Watch for a cell that lags — it signals a weak cell or sense-wire issue, not necessarily a dead pack.

Basic troubleshooting

  • Won’t charge in cold — expected; warm it above 0 °C.
  • BMS trips under load — check current limit and connections.
  • Swollen case — stop use and isolate; rare in LFP but treat seriously.
  • One cell low — balance/inspect before replacing the pack.

Key takeaways

UN38.3 required

Class 9, tested, documented for air/sea.

Store at 50%

30–60% SoC; top up every 3–6 months.

Keep it cool

10–25 °C, dry, out of sun.

Torque terminals

Loose = heat = voltage drop.

Talk to an EGbatt engineer

Tell us your load, voltage and autonomy. We will size the pack, quote it, and flag the traps before you buy.

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Frequently asked questions

Only as cargo under UN38.3 with proper packing; loose/spare large packs are generally not allowed as passenger baggage.

Not ideal — store at ~50% SoC to minimise calendar ageing.

A full top-balance every few months is plenty for a healthy BMS-equipped pack.