We aim to dispatch all orders within 1-2 business days. Lightweight items (such as keyboard stickers) are dispatched via standard postal services.
Lithium-Ion Battery Shipping Compliance
All loose lithium-ion battery cells (Samsung 18650 and 21700) are classified as Class 9 Dangerous Goods. To comply with national and international transport regulations, these items are securely packaged with appropriate hazard warning labels and shipped strictly via authorized courier networks. We do not ship loose batteries via standard letter postboxes.
Battery Safety Disclaimer
By purchasing our lithium-ion cells, the buyer agrees that they possess expert technical knowledge regarding the safe handling, charging, and storage of these batteries. Core Tech Essentials is not liable for any damage or injury resulting from the misuse, short-circuiting, or improper modification of these cells. Always store cells in a dedicated protective plastic case.