5-30KWH Stacked Lithium Batteries
Power & Capacity Performance: Operating at a nominal 48V (range: 45V–57.6V), the 5kWh model powers 1–2kW loads for 3–5 hours (e.g., a 1.5kW fridge, LED lights, and a laptop overnight), while the 10kWh variant handles 2–3kW systems for 5–10 hours (sufficient for a small office during outages). Both support continuous discharge currents of 25A (5kWh) and 50A (10kWh), with peak surges up to 100A and 200A respectively, easily adapting to high-demand devices like air conditioners or power tools. Stable voltage output ensures safe operation for sensitive equipment such as solar inverters and smart home systems.
Safety & Longevity: The integrated BMS provides robust multi-layer protection, including overcharge cutoff at 57.6V, over-discharge prevention below 45V, and safeguards against overcurrent (50A for 5kWh, 100A for 10kWh) and short circuits. It regulates temperature reliably from -20°C to 60°C, with automatic shutdown at 65°C to prevent overheating. Active cell balancing ensures uniform charge across 16 series-connected lithium cells (3.2V each), preventing uneven aging and maintaining consistent performance over time. With 5,000+ deep cycles at 80% depth of discharge, it lasts 12–15 years-far exceeding lead-acid's 300–500 cycles-with zero maintenance (no watering or acid checks required).
Modular Design & Durability: Encased in fire-retardant, IP65-rated casings, both models resist dust, moisture, and vibration, making them suitable for indoor, garage, or covered outdoor installations (e.g., alongside solar panels). The 5kWh unit (approx. 450×300×600mm, ~40kg) and 10kWh unit (approx. 600×300×600mm, ~75kg) save 50–60% space compared to lead-acid equivalents, fitting easily in tight spaces. Their stacked modular design allows plug-and-play parallel expansion via busbar connectors, letting users scale capacity up to 50kWh by adding more units-perfect for growing off-grid homes or businesses with increasing energy needs. Built-in lifting handles simplify installation, while a clear LCD display shows real-time state of charge (SOC), voltage, and current, eliminating guesswork about remaining power.
Efficiency & Compatibility: Boasting 94% round-trip energy efficiency, these batteries minimize energy loss during charging and discharging-significantly outperforming lead-acid (80% efficiency) and reducing reliance on grid or generator power. They integrate seamlessly with MPPT solar charge controllers (e.g., Victron, SMA) and 48V inverters via standard terminals, supporting both off-grid solar setups and grid-tied backup systems. Optional RS485/Bluetooth connectivity enables remote monitoring via smartphone apps, allowing users to track energy usage, receive low-charge alerts, or adjust settings-adding convenience for smart energy management and centralized oversight.
- What are the unique features of lithium polymer batteries?
They have a flexible and thin - film design, which allows for more shape versatility.
- How is the manufacturing process of lithium polymer batteries different?
It often involves different techniques to incorporate the polymer electrolyte.
- Are lithium polymer batteries safer than other lithium batteries?
They can have better safety features due to the nature of the polymer electrolyte.
- Can lithium polymer batteries be made in custom shapes?
Yes, their flexible design enables custom shaping for specific applications.
- What is the energy density of lithium polymer batteries?
It varies, but they generally have competitive energy density within the lithium battery family.
- How do you maintain lithium polymer batteries?
Similar to other lithium batteries, avoid overcharging and store them properly.
