Qnbbm 4s 12V Active Battery Equalizer Balancer BMS for LiFePO4, Lipo, Lto, Ncm, Limn 18650 DIY Battery Pack

• Type: Lead-Acid Batteries
• Usage: Car, Bus, UPS, Electric Power, Lighting, Electric Bicycle, Boat
• Nominal Voltage: 12V
• Shipping Cost: Estimated freight per unit.: about shipping cost and estimated delivery time.
• Currency: US$
• Return&refunds: You can apply for a refund up to 30 days after receipt of the products.
• Model NO.: QNBBM 4S 12V Active Battery Equalizer Balancer
• Discharge Rate: Medium Discharge Rate
• Shape: Flat Battery
• Electrolyte: Acid
• Installation: Packaged
• Rechargeable: Chargeable
• Products Name: Qnbbm Active Ce Approved 1s 2V 6V 12V Lead Acid Ba
• Battery Type: Li Ion/Lead Acid/Lto/Supercapacitor
• Brand: Qnbbm
• Certificate: RoHS Ce
• Logo: Customizable
• MOQ: 2PCS
• Shipment: DHL/UPS/FedEx/E-Packet
• Balance Current: 6A
• Volatge Differences: 1V-3A
• Working Effciency: >94%
• Voltage Difference: <10mv
• Balance Method: Energy Transfer& Dynamic
• Working Voltage: 1.8V-5V
• Battery Count Limited: Unlimited
• Power Consumption: <50MW Per 1s
• Transport Package: Bubble Bag/Outercarton
• Specification: 3V Lithium
• Trademark: QNBBM
• Origin: Shenzhen
• HS Code: 9032899090
• Production Capacity: in Stock

Product Description

Qnbbm 4s 12V Active Battery Equalizer Balancer BMS for LiFePO4, Lipo, Lto, Ncm, Limn 18650 DIY Battery Pack
 

Battery voltage balancers Paramaters

 

Sizes (Length * Width * Height):
§  1S single cell:
o   3.1 * 1.5 * 0.8 inch - 80 * 38 * 21 mm
§  3S Module:
o   4.7 * 2.7 * 1 inch - 120 * 70 * 25 mm
§  4S Module:
o   5.9 * 2.7 * 1 inch - 150 * 70 * 25 mm
§  5S Module:
o   7.5 * 2.7 * 1 inch - 190 * 70 * 25 mm
§  6S Module:
o   8.7 * 2.7 * 1 inch - 220 * 70 * 25 mm
§  8S Module:
o   11 * 2.7 * 1 inch - 280 * 70 * 25 mm

Why you need a Battery Balancing System

The individual cells in a battery pack are rarely an exact duplicate of all the cells in the battery pack.
 
In actual practice, when a pack of batteries reaches a specified charge cutoff voltage then the charger will shut off. If one cell in a pack reaches that voltage before other cells reach a full charge it will cause the charger to shut off - prematurely denying the balance of the pack a full charge.
 
Conversely when the weakest cell in a pack reaches its discharge cutoff voltage it will show as the discharge point and shut down the pack prematurely - thereby denying the user the balance of energy the other cells have stored.
 
These battery equalizers prevent this from happening. This yields up to 30% more power and will extend the life of the battery pack.
 
Benefits:
Quick and easy installation
Keeps your batteries voltage difference within 10mV!
May increase the lifespan of your battery pack by 2-3 times by preventing the batteries from being overcharged or over discharged