We will help track the package. If confirmed lost, we will resend a new sample free of charge.

Yes. Long-term stable large orders qualify for tiered pricing, quarterly rebates, priority production, and other benefits.

Yes. Each batch comes with factory test reports including internal resistance, capacity, voltage, and cycle data.

Yes. Free real videos/photos of workshop, production line, testing equipment, and warehouse.

Yes. One-stop assembly with wires, terminals, switches, and LED indicators per your drawings.

Yes. IP65/IP67 waterproof, potting for shock resistance, high temp (85℃) /low temp (-40℃) customization available.

Yes. UN3480 certified cartons, anti-static inner packaging, shock protection, passed air transport tests.

Production scheduled within 1–2 working days after deposit received; material procurement and production start immediately.

Yes. Free formal PI, sales contract, and stamped documents for customs clearance and accounting.

All new Grade A cells, zero cycles, same quality as mass production.

Yes. Standard specs can be rushed with a small fee, subject to production schedule.

Not recommended—safety risk exists. Discontinue use immediately and contact our after-sales team.