This page is written for non‑enthusiasts ("muggles"). It covers battery safety, quick Andúril UI pointers, and links to detailed guides and communities.
Essential Battery Safety (Read First)
- Use only quality, genuine Li‑ion cells from reputable vendors and a quality charger. Avoid unknown or “ultra‑cheap” cells.
- Never carry loose batteries in pockets or bags. Keep them in a plastic battery case so coins/keys can’t short them.
- Do not use damaged cells (torn wraps, dents, leaking, or that get unusually hot). Rewrap or recycle safely.
- Charge on a hard, non‑flammable surface, away from bedding, paper, or clutter. Don’t leave charging batteries unattended.
- Do not over‑discharge: if the light blinks, dims abnormally, or stops, recharge soon (don’t let cells sit empty).
Deep‑dive: BudgetLightForum — Lithium‑ion Battery Safety 101
Charging Do’s & Don’ts
- Use a reputable charger; stop using any charger or cell that becomes excessively warm or smells odd.
- For longevity, it’s fine to opportunistically charge (you don’t always need 100%).
- For long‑term storage (weeks/months), store around ~40–50% charge in a cool place.
References: Battery University — Charging Li‑ion • How to Store Batteries
About This Light (Emisar D4K)
- This model generates a lot of heat on high modes; that’s normal. Ramp up carefully and mind the temperature.
- Battery type: D4K typically requires a 21700, unprotected flat‑top cell. Button‑tops / protected cells may not fit or work.
- Lockout recommended during carry to prevent accidental activation (see Andúril tips below).
Specs & options: Emisar D4K product page
- Move it to a safe, non‑flammable area if you can do so safely (tongs/heat‑resistant gloves).
- Do not inhale fumes; ventilate the area.
- If fire occurs, call emergency services. Do not use water on large Li‑ion battery fires; evacuate if needed.
Quick Andúril 2 Tips
Safe start for new users: Keep the light in Lockout when carrying. From OFF, 4 rapid clicks toggles Lockout (momentary moon still works). Start on low; hold the button to ramp brightness. Avoid “Turbo” until you’ve reviewed the chart below.
More printable guides and discussion: 1‑page printable Andúril 2 guide • Updated Andúril 2 flowchart • Andúril creator's flowchart
Good Habits
- Keep cells in matched sets (if your device ever uses more than one) and mark them so they stay together.
- Inspect wraps periodically; replace any torn wrappers.
- Clean contacts (cell ends & flashlight springs) occasionally with isopropyl alcohol.
Bad Ideas (Don’t Do These)
- No loose‑cell pocket carry (keys/coins can short a cell).
- No charging on a bed/sofa or under piles of paper.
- No damaged, mystery‑brand, or rewrapped cells from random marketplaces.