Battery Guides & Industry News

1. Daily energy use — sum appliance watt-hours per day (3–5 kWh cabin, 10–20 kWh family home). 2. Days of autonomy — 2–3 cloudy days is a sensible balance. 3. Efficiency & DOD — divide by ~0.85 system efficiency and 0.8–0.9 usable DOD for LiFePO4. 4. Voltage — above ~3 kWh, 48V is the practical standard. 5. Expansion — pick a parallel-capable platform so you can grow later.

Unsure? Send us your appliance list and location — we will size a system for free.

Balancing. The BMS keeps cell voltages even, so the pack uses full capacity instead of being limited by its weakest cell. Protection. It disconnects on over-voltage, over-discharge, short circuit or extreme temperature. State estimation. Accurate SOC/SOH numbers for your inverter and app. Communication. CAN, RS485 or RS232 protocol matching — one of the most common OEM requests we handle.

With WOYPOW, BMS parameters are configured to your inverter before shipment.

UN38.3 is the baseline — altitude, thermal, vibration, shock, short circuit, impact and forced discharge tests. Documents — test report, MSDS and transport certificate per mode. SOC limits — commonly 30% for air freight. Packaging — UN-certified outer boxes, terminal short-circuit protection and hazard labels.

Always ask for the UN38.3 report, MSDS and transport certificate in advance. We provide the full document package with every order.

OEM — your brand on an established platform: logo, label, casing, BMS parameters, packaging and documents. ODM — we design around your spec: voltage, capacity, shape, connectors, performance targets, then prototype and mass produce.

Customizable: capacity, voltage, BMS/protocol matching, casing, display, labeling, packaging and the full document set under your brand. Tell us your market and quantity — we will recommend the fastest route.

1. Start from your inverter (voltage range and protocol). 2. Size for daily cycling — 5–10 kWh wall battery covers a small-to-medium home. 3. Check the expansion path. 4. Verify certifications for your market before ordering. 5. Confirm lead time and engineering support — a real factory ships standard wall batteries in 15–25 days.

Send us your inverter model and daily usage — we will match a battery within 24 hours.