Button top 18650 battery

Match it by capacity, voltage, top-terminal style, and device compatibility. This listing features generic 18650 rechargeable lithium-ion cells rated at 3.7V with around 5000mAh, offered in flat-head and pinhead top variants and typically sold in 50-piece packs. Ensure the chosen top style and pack size align with your device’s requirements.

Top-terminal type determines fit and contact reliability in your device. Flat-heads provide a flush contact surface, while pinheads use a small protruding contact. In practice, pick the variant that matches your device’s battery contacts; this listing provides both options for you to compare.

They work well for both beginners and experienced hobbyists, depending on your device’s power needs. For everyday, low-to-moderate drain devices, the 5000mAh capacity at 3.7V offers long run time between charges. For high-drain setups, ensure your device supports Li-ion 3.7V cells and confirm top-type compatibility with the battery holder.

Keep safety first: use a proper 18650 charger and never mix cells. Check polarity before use, store in protective cases, and avoid short circuits. These are generic 18650 Li-ion cells, part of the standard 18650 Li-ion family at 3.7V, commonly sold in packs; ensure your device supports 3.7V cells and that the top style matches (flat-head or pinhead) for a safe fit.

Check your device’s battery interface to confirm the required top style and voltage. Compare that with the flat-head and pinhead options shown in this range. If you’re unsure, seek guidance from support or choose a pack size that matches your project needs.