36V 50Ah 1800Wh 3650186CR Lithium Ion Battery Pack

This 36V 50Ah 1800Wh lithium-ion battery pack is built around a robust 10S25P configuration, providing an immense energy reservoir for applications that simply cannot afford to run out of power. Whether you’re storing solar energy for a cabin, electrifying a commercial vehicle, or running professional equipment all day, this pack delivers reliable, long-lasting performance. The integrated smart BMS ensures complete protection and cell balancing, while the durable PVC housing offers a cost-effective and reliable solution for industrial and commercial use.

Features:

• Massive Energy Reserve: With 1800Wh of capacity, this pack provides exceptionally long runtimes, reducing the frequency of recharges for sustained operation.
• Robust Configuration: The high-parallel 25P design ensures stable performance, reduced stress on individual cells, and reliable power delivery under high loads.
• High Output Capability: Supports a 40A continuous and 120A peak discharge current, capable of starting motors and handling high-power tools with ease.
• Professional Grade Management: The advanced BMS provides comprehensive protection (overcharge, over-discharge, over-current, short-circuit, overheating) and ensures cell balance for longevity and safety.
• Durable & Cost-Effective: Housed in a resilient PVC shrink wrap, this pack offers a reliable and economical power solution for demanding environments.

Specifications:

• Name: Lithium ion battery pack
• Model: 3650186CR
• Configure: 10S25P
• Nominal Voltage: 36V
• Nominal Capacity: 50Ah
• Rated Energy: 1800Wh
• Charging Voltage: 42V max
• Charging Current: 20A max
• Charging Method: Constant Current/Constant Voltage (CC/CV)
• Discharging Current: 40A max coutinuous, 120A peak
• Discharging Cutoff Voltage: 30V
• Cell Type: A-grade NCM li-ion cell
• PCM/BMS: Integrated BMS for protection against overcharge, overdischarge, overcurrent, short circuit, overheat, and cell balancing
• Housing: PVC shrink wrap
• Terminal: Customizable wire leads, connectors
• Dimensions: 465mm x 255mm x 80mm max
• Weight: 13.5kg approx.
• Environment Conditions: Charge: 0~45°C, Discharge: -20~60°C, Storage: -20~40°C, best 20±5°C for long time storage. Humidity: 85% max
• Modifications or custom designs available

Application Scenarios:

• Solar Energy Storage Systems: The perfect battery bank for off-grid cabins, solar generators, and small renewable energy installations, storing ample power for day and night use.
• Electric Utility Vehicles & Carts: Power large golf carts, airport ground support vehicles, industrial cleaning machines, and material handling equipment with confidence.
• Professional Groundskeeping & Construction Equipment: Run commercial lawn mowers, large trimmers, concrete vibrators, and other heavy-duty cordless tools all day.
• Marine & RV Auxiliary Power: Serve as a silent, high-capacity house battery for recreational vehicles and boats, powering appliances, lighting, and electronics for extended trips.
• Backup Power for Telecom & Server Racks: Provide reliable DC backup power for critical infrastructure, ensuring uptime during outages.

Charging & Safety Guidelines:
Always follow these guidelines for safe operation and maximum cycle life:

• Use only a charger compatible with the charging specifications of the battery.
• Charge at standard current rate for optimal cycle life; max current rate for faster charging.
• Never charge above the maximum charging voltage to avoid overcharge.
• Do not discharge below the discharging cutoff voltage to avoid overdischarge and prevent permanent damage.
• Do not discharge above the current rating. Exceeding these limits may trigger BMS protection or cause permanent damage to the battery cells.
• Operate the battery within the specified environmental conditions (temperature, humidity, and ventilation).
• Keep the battery away from fire, open flames, radiators, and other heat sources.
• Do not expose the battery to direct sunlight for extended periods during operation.
• Store at 20±5°C for extended periods to maximize longevity. Keep humidity below 85% during storage.
• Do not disassemble, puncture, or expose to fire.

Shipping & Handling Instructions:
To ensure safe transport and compliance with international regulations, please note the following:

• The battery can be shipped by air, sea, and ground transport — subject to applicable dangerous goods regulations for lithium batteries.
• UN38.3 Compliant — The battery has been tested and certified in accordance with UN38.3 for safe air and sea transport.
• Package Properly — Use only UN-certified packaging for lithium batteries. Ensure terminals are protected against short circuits and pack securely to prevent movement during transit.
• State of Charge (SoC) — For transport, maintain the battery at ≤30% state of charge as required by IATA and IMDG regulations.
• Labeling — Packages must display the appropriate lithium battery handling labels and include emergency contact information.
• Documentation — Ensure the shipping declaration includes the proper UN number (e.g., UN3480 for lithium-ion batteries) and your dangerous goods transport documents.
• Prohibited Shipments — Damaged, defective, or recalled batteries are strictly prohibited from transport.

Storage & Long-Term Maintenance:
To ensure maximum service life and maintain optimal cell health, please follow these guidelines for extended storage:

• Optimal Temperature — Store the battery at a stable temperature between 15°C and 25°C (ideal: 20±5°C). Avoid exposure to extreme heat, direct sunlight, or freezing conditions.
• Recommended Humidity — Keep storage environment humidity below 85% to prevent moisture ingress and potential damage to the battery cells and BMS components.
• Partial Charge for Storage — For extended storage (longer than 3 months), maintain the battery at approximately 50%–60% state of charge (around the nominal voltage). Do not store fully charged or fully depleted — both conditions accelerate capacity degradation.
• Periodic Maintenance Cycle — For batteries stored over six months or longer, perform at least one full charge/discharge cycle every six months to maintain cell health. This helps recalibrate the BMS, balance the cells, and prevent voltage drift that can lead to capacity loss.
• Inspect Before Use — Before returning a stored battery to service, inspect for any signs of swelling, leakage, or damage. If the battery voltage is below the discharging cutoff voltage, it has been over-discharged and should not be reused.

💡 Why cycle stored lithium batteries? Cells naturally self-discharge over time, and the built-in BMS circuit consumes a small amount of current even when idle. In multi-cell packs, slight variations in self-discharge rates between cells can gradually cause voltage imbalances. A maintenance cycle keeps the cells electrochemically active, balances the pack, and prevents capacity loss or degradation.