Yes, we offer competitive tiered pricing for bulk orders, solar installers, and battery pack manufacturers. To receive a custom offer tailored to your specific requirements, please click the “Request a Quote” button on the product page. Our team will review your quantities and logistics needs to provide our best possible price within 24 hours.

There are three ways to activate:

• Apply a charge (ensure the charger voltage is slightly higher than the total battery voltage).
• Use the physical power button (included with most PB and B2A models).
• Use the “Activate” function in the JKBMS App if connected via a supported interface.

Selecting the right BMS is the most critical decision for your battery’s safety and performance. Follow this simple 3-step guide to find your perfect match.

Step 1: Identify Your Application 

• For Electric Vehicles (Scooters/E-bikes): Choose the BD Series.
  • Why: Compact, lightweight, and cost-effective. Ideal for 12V-72V systems where space is limited and high-speed balancing isn’t the primary concern.
• For Home Energy Storage (Solar/Off-grid): Choose the PB Series.
  • Why: Built-in CAN/RS485 communication. It “talks” to your inverter (Deye, Victron, etc.) and supports paralleling multiple battery packs.
• For DIY Enthusiasts & Large Capacity Packs: Choose the B2A Series.
  • Why: The gold standard for 280Ah+ cells. Its powerful 2.0A active balance keeps even the largest cells perfectly synced.

Step 2: Check Your Battery Voltage & Series 

Make sure the BMS supports your specific “S” (Series) count:

• 12V Systems: Look for 4S compatible models.
• 24V Systems: Look for 8S compatible models.
• 48V Systems: Look for 16S compatible models.
• 72V-96V Systems: Look for 20S to 24S compatible models.

Note: Most JKBMS are adjustable (e.g., an 8S-24S model can work for any pack within that range).

Step 3: Match the Continuous Current 

Calculate your maximum load to choose the right Amperage (A):

• Small Loads (<2000W): 40A – 60A is sufficient.
• Medium Loads (3000W – 5000W Inverters): 100A – 150A is recommended.
• Heavy Loads (>8000W or EV high torque): Go for 200A or 300A models to ensure the BMS runs cool.

Summary: Quick Comparison Table

💡 Pro Tip from the Experts:

If you are using Grade A+ 280Ah/304Ah cells, we always recommend a 2.0A Active Balance model. Large cells have more surface area and capacity; a smaller 0.6A balancer may take days to correct a deviation, while a 2.0A balancer does it in hours.

Passive balancing dissipates excess energy from high-voltage cells as heat through resistors. JKBMS uses Active Balancing, which transfers energy from higher-voltage cells to lower-voltage cells. This process is more efficient, generates less heat, and significantly extends your battery’s lifespan