Petromax Li-Ion Batteries 18650 for LM500 (4-Pack)

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LM500 · 18650 · 4-Pack
Petromax 18650 batteries: Reserve for the LM500 Four rechargeable Li-Ion cells with 3.6 V and 3450 mAh each according to available product data, matched to the Petromax LM500. The real added value is not “more power,” but a planned reserve for longer use.

Our assessment
For LM500 owners, a second set makes sense if the lantern should remain available longer on tours, in camp, or as emergency light. 18650 is only a size – not every cell is automatically suitable for every device. This set should be treated as LM500 accessory.


Fits well if … … you own a Petromax LM500 and want a matching reserve or replacement set.


Rather doesn’t fit if … … you want to power arbitrary 18650 devices or a device explicitly requires protected cells.


Features with practical effect


4 × 3450 mAh A complete set of four for the LM500; sensible as a matching set instead of mixed single cells.


3.6-V Li-Ion High energy density requires careful handling. Never transport cells loose with metal parts.


Chargeable in the LM500 Available product data states charging in the LM500 via USB-C. Keep charging port dry and supervise the charging process.


Reserve instead of runtime promise Actual usage time depends on brightness level, temperature, cell condition, and usage. A second set is therefore more predictable than an ideal number.


Avoid limits and bad purchases

Unprotected 18650: According to product data, these are unprotected cells. Use only in devices designed exactly for this.
Do not mix: Do not combine damaged, differently aged, or differently charged cells as a set.

Technical data with practical interpretation


Quantity 4 batteries – complete set for the intended LM500 application.


Size 18650 Li
-Ion.


Nominal voltage 3.6 V per cell according to available data.


Capacity 3450 mAh per cell according to available data.


Scope of delivery
4 × Petromax Li-Ion battery 18650 for LM500. Lantern and separate charger are not included.
Safe use
Use only in explicitly compatible devices. Observe polarity, do not short-circuit contacts, do not transport cells loose, do not open or throw into fire. Do not continue to use if insulation is damaged, deformed, unusually warm, or has an odor. Store dry and protected from temperature.
FAQ
Are the batteries intended for the LM500? Yes, the listing is explicitly created as LM500 accessory. Can I use them in any 18650 device? No. Size alone is not enough; device approval and cell type must match. Why not transport loose with keys? Metal parts can short-circuit the contacts and cause dangerous heating. Should I mix new and old cells? No. For devices with multiple cells, use a matching, uniform set.
Black Raptor · Energy with system
As an LM500 reserve, the set of four makes sense. As a universal "somehow 18650" battery, it is the wrong approach – with Li-Ion, confirmed device compatibility is decisive.