Before approving a supplier of lithium manganese batteries, buyers should allow approximately 30 days based on the supplier's stated delivery schedule. Because no separate sample lead time is provided, confirm in writing that this timeframe includes sample preparation, inspection, and shipment. Approval should only proceed after the samples meet the required technical, application, and quality expectations.
The available supplier information specifies a 30-day delivery time but does not distinguish between standard orders and samples. Treat this period as a preliminary benchmark rather than a guaranteed sample lead time. Ask the supplier to confirm the expected dispatch date, the time required for sample preparation, and whether any testing or logistics conditions could extend the schedule.
Once the samples arrive, record the actual delivery date and compare the batteries with the approved specifications. The evaluation should cover physical construction, power stability, self-discharge performance, and operation within the stated temperature range. These results should be assessed against the environmental and electrical requirements of the final device.
Vinnic Manganese Dioxide Lithium Battery products are identified for automotive electronic applications such as car key remotes, tire pressure monitoring sensors, in-car electronic tags, dash cam backup batteries, and keyless entry systems. The product range is also presented for smart watches, Bluetooth trackers, electronic scales, blood glucose meters, portable pulse oximeters, smart door locks, smoke alarms, IoT nodes, security cameras, and industrial counting equipment.
For each application, the approval record should link the battery's stated features to actual operating needs. For example, a remote or sensor may require compact dimensions and low self-discharge, while an outdoor or automotive device may require reliable performance across changing temperatures.
The supplier describes a quality process that includes inspection of every unit on the production line, laboratory sampling and testing, and inspection of incoming raw materials. Buyers should request the relevant inspection records and compare them with the sample evaluation results before authorizing production use.
The supplier also lists ISO 9001:2015 and IATF 16949:2016 certifications. These certifications can be reviewed alongside technical documents, test records, and application-fit results as part of the supplier approval file.
| Evaluation item | Supplier information |
|---|---|
| Delivery planning | 30-day delivery schedule; no separate sample lead time is stated |
| Minimum order quantity | 10,000 batteries |
| Battery characteristics | Compact and lightweight design, stable power supply quality, and extremely small self-discharge |
| Operating temperature | -20 °C to 60 °C |
| Inspection controls | 100% production-line inspection, laboratory sampling and testing, and incoming raw material inspection |
| Business model | Full industrial chain, distribution, and direct sales |
| Freight option | Sea freight, positioned for large-volume loading and long-distance material transport |
The supplier states a 30-day delivery period, but does not publish a dedicated sample lead time. Plan around 30 days initially and obtain written confirmation that the schedule applies to samples.
Inspect the battery's size and weight, power supply stability, self-discharge behavior, and performance within the -20 °C to 60 °C range. Review inspection and laboratory records, then confirm that the results suit the target device.
The listed minimum order is 10,000 batteries. The supplier supports full industrial chain operations, distribution, and direct sales, and offers sea freight for applicable shipments.
Set aside 30 days when planning lithium manganese battery samples, but confirm the sample-specific schedule before making approval commitments. A reliable decision should combine delivery confirmation, technical verification, application testing, inspection evidence, and purchasing requirements. The supplier lists ISO 9001:2015 and IATF 16949:2016 certifications, a 10,000-unit MOQ, and multiple sales and supply options. For technical solutions or further assistance, contact vinnic@chungpak.com.
CHUNG PAK (GUANG DONG)BATTERY INDUSTRIAL CO., LTD
Founded in 1980, the company started as a battery producer and later developed manufacturing capabilities for paper separators, zinc materials, metal and plastic components, and tooling. Its Vinnic product portfolio includes manganese dioxide lithium batteries, alkaline batteries, zinc chloride batteries, button cells, and Ni-MH rechargeable batteries. The company reports annual capacity exceeding 1.8 billion pieces and supplies customers across America, Europe, Africa, and Southeast Asia.
Its recorded certifications include ISO 9001:2015 and IATF 16949:2016.
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