Q1: What type of battery cell do you adopt and what are the standard specifications?
A: We adopt LiFePO4 lithium iron phosphate cells featuring high safety, 6000+ cycle life, and stable performance. Standard specs include 51.2V, 5kWh/10kWh/15kWh/20kWh wall-mounted batteries, and we support full OEM customization on voltage, capacity, size, and appearance.
Q2: What is the working performance and does it support parallel connection?
A: The batteries feature a cycle life of 6000+ cycles (@80% DOD), efficiency ≥95%, and operating temperatures from -20°C to 60°C (low-temperature version optional). They include a built-in smart BMS supporting multiple units in parallel, compatible with most mainstream inverters via RS485/Bluetooth.
Q3: Do you support OEM/Private Label and visual customizations?
A: Yes, we support blank no-logo housing and custom brand logos. Small modifications (logo printing, interface language, port position) are welcome, and we provide one-stop ODM solutions for complete structural customization.
Q4: What is the lead time and what shipping methods do you use?
A: For sample orders, the lead time is 20–28 working days; for bulk orders, it is 30–40 working days. We utilize air express for samples and sea freight for bulk goods, complying strictly with dangerous goods packaging standards.
Q5: What are your payment terms and warranty policy?
A: We offer a 3-year warranty for the complete unit and a 5-year warranty for the battery cells, along with lifelong online technical support. Payment options include a 30% TT deposit for bulk orders (balance before shipment) and PayPal/Western Union for sample orders.
Q6: What are the daily maintenance tips for these lithium batteries?
A: For long-term storage, maintain a 40%–60% state of charge (SOC). Recharge the battery every 3 months, and avoid exposure to extreme high or low temperatures for extended periods.
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