5pcs PCB Charger Protect Balance Board for 4 Packs14.8v 16.8v Li-ion 18650 Li-ion Li Lithium 18650 Battery Charging module
Main IC uses the original "Ricoh" imported components. Overcharge, over discharge, over current, short circuit protection, for a variety of capacities in various shapes 3.7V lithium batteries. Japan Seiko protection IC, VISHAY, AOS, IR and other high-quality MOSFET, FR-4 plate low temperature coefficient, design, fine workmanship, testing and comprehensive. Compact, suitable for many of the requirements of highly integrated, low-cost applications to meet a wide range of performance requirements to ensure the absolute safety and reliability of the battery pack.
The lithium battery protection board attributes:
Overcharge voltage range: 4.25-4.35v (+/-0.05v)
Over-discharge voltage range: 2.3-3.0v(+/-0.05v)
Maximum operating current: 3-5A
Working temperature: -40 --- + 50
The maximum instantaneous current: 8-10A
Storage conditions: -40-- + 80
Static current: less than 6uA
Effective life: more than 50,000 hours
Resistance: less than 45mΩ
Short circuit protection: protect, need to be recharged recovery
The protection board size and device description;
Main functions and features: over charge protection, over-discharge protection, short circuit protection, overcurrent protection.
The protection board uses Ricoh Japan rechargeable lithium iron phosphate battery protection IC;
1) Built-in high-precision voltage detection circuit;
2) terminal of the charger using high pressure devices;
3) Built-in three overcurrent detection circuit (overcurrent 1, overcurrent 2, load short circuit);
4) through the MOS transistor can control the battery charging and discharging;
5) Low standby current consumption.
Function and description:
1, the lithium battery with protection board according to the wiring diagram connection, when the battery voltage is overcharge and over-discharge voltage between the voltage, and P +, P- charging a second, P + and P- output voltage of the battery voltage.
Battery charge function: between P + and P- plus charger to charge the battery, the battery voltage charge to overcharge detection voltage (4.25 ± 0.025V), the protection circuit to cut off the charging path, to achieve overcharge protection.
Battery over-discharge protection: between P + and P- connected load the battery discharge when the battery voltage drops to over-discharge voltage (2.4 ± 0.08V), the protection circuit, shut off the discharge path to achieve the over-discharge protection.
Short circuit protection function: When the P + and P- short circuit protection circuitry rapid action in the 5-50uS, cut off access, short-circuit protection.
Overcurrent protection function: When V- terminal voltage of (0.15 ± 0.02V), the protection circuit will act quickly in 6.7-13.9ms, cut off access, overcurrent protection.
Note: If the correct welding, testing the output No output, use other ways to activate charging about protection board!
Note: This protective plate is precision originals, the factory has been rigorously tested, once the sale is not in front of the welding quality problems found by our responsible, has been found after welding quality problems will not be returned. Use a good test before work!
1.We accept payment that aliexpress can accept, We apologize that we cannot accept other payment methods, such as cheque or postal orders .2.All major credit cards are accepted,and we received it in 24 hours.3.Payment must be received within 10 business days of auction closing. Shipping
1.We ship to worldwide,per order have a track number.2.Before buying,please make sure your aliexpress and alibaba address is correct.Or not,please correct it before payment.3.If goods less than 1.5Kg,we ship by China Post Air Mail or by HK Post Air Mail.4.For considering environmental protection, we don\'t usually send packing.5.Ship to worldwide within 12-24 hours after payment completed received,arrive at most destinations.All orders will be shipped via the International Airmail service unless specially agreed by seller!Warranty and Return
1.12-months Warranty for defective items (excluding items damaged and/or misused after receipt). Buy with confidence2.Refund or replacement request is available only the requests within 1 week after parcel received & returning the item as the same condition as received.3.Please contact us to request a return authorization. Your name, auction number, and reason for return should be included in the email. All items returned must contain all original packaging materials.4.Please repack the item carefully. Items returned will be tested and a new replacement will be shipped to the buyer immediately when found defective. In the event that a suitable replacement is not available then a refund will be issued. Shipping, handling and insurance fees are non refundable.5.Return shipping is to be paid by the Buyer. /item.htm?spm=a230r.1.14.154.uRb04g&id=38562369420&ns=1#detail