BMS 3-string 12.6V 20A lithium battery protection board (with built-in recovery function - AUTO Recovery)
Three 12.6V 20A lithium battery protection boards (with recovery function - AUTO Recovery)
Scope of application: lithium batteries with a nominal voltage of 3.6V and 3.7V (including 18650, 26650 and polymer lithium batteries)
Product size: 59 * 20 * 3.4mm
Product weight: 4.3g
Charging voltage: 12.6V - 13.0V
Continuous discharge current (upper limit): 20A (if the cooling environment is bad, please reduce the load current for use)
Continuous charging current (upper limit): 10A
Standard version: applicable to electric drills with starting current below 40A and power below 65W.
Note 1:
Three 15C-20C power batteries or six 10C-15C power batteries are required to successfully start the electric drill (ordinary 18650 cannot start the electric drill!!!); If the battery is too small or the power of the electric drill is too high, please contact the shop owner again to tell you the solution.
Note 2:
Connect 0V, 4.2V, 8.4V, 12.6V strictly according to the diagram, and do not intentionally short circuit.
Note 3:
When there is a brush motor load, a capacitor (10uF-1000uF) must be connected in parallel at the positive and negative terminals of the motor to prevent the reverse peak voltage generated by the motor from interfering with the protection board or breaking through MOS tubes.
Note 4: When three groups of batteries are connected in series, please ensure that the voltages of each group of batteries are the same. If they are different, please fully charge each group of batteries separately and then use them in series...
During the discharge test, the group of batteries with fast voltage drop is the poor battery.
For some customers with poor electronic foundation, please explain: Never mix good batteries with poor batteries! The capacity/internal resistance of the three batteries should be as close as possible! (The service effect of two good batteries+one poor battery=the service effect of three poor batteries).
For some customers with poor electronic foundation, please explain: Never mix good batteries with poor batteries! The capacity/internal resistance of the three batteries should be as close as possible! (The service effect of two good batteries+one poor battery=the service effect of three poor batteries).
Standard version: applicable to electric drills with starting current of 40A and power below 65W.
Enhanced version: applicable to electric drills with starting current of 60A and power below 100W..
If it happens to be less battery or the drill power is larger, Cause can not start, Nuo contact the shopkeeper to tell you the solution.
| Electrical parameters: |
| project |
least |
represen |
crest |
unit |
remarks |
| Self-consump |
12 |
18 |
24 |
uA |
|
| Overcharge to |
4.2 |
4.25 |
4.3 |
V |
|
| Overcharge |
4.1 |
4.16 |
4.2 |
V |
|
| Overdischarge |
2.35 |
2.5 |
2.7 |
V |
|
| Overdischarge |
2.9 |
3.2 |
3.3 |
V |
|
| Guide the |
10 |
12 |
14 |
mQ |
|
| Overcurrent |
37 |
40 |
43 |
A |
standard |
| Overcurrent |
56 |
60 |
64 |
A |
Enhanced |
| Overflow delay |
50 |
100 |
150 |
ms |
|
| Continuous |
0 |
20 |
20 |
A |
|
| Continuous |
0 |
252 |
252 |
W |
|
| ambient |
-40 |
25 |
85 |
°C |
|
Conditions for successful startup of electric drill
1. Three 15C-20C power batteries or six 10C-15C power batteries are required.
(The ordinary 18650 cannot start the electric drill!!!)
2. The connection line between the battery pack and the protection board shall be as short as possible and the wire core shall be as thick as possible.
3. When welding the battery for the first time, do not connect any load or equipment to the output end.
4. If it still cannot be started,
Please contact the shopkeeper again to tell you the solution
Packing & Delivery
Company Profile
With being OEM manufacturer specializing in PCB&PCBA with 19-year, nowadays,we have built up our strong product research and development center and we are devoting ourselves to electronics smart product.
Our core value: Customers first,fast and efficient,continuous innovation,and grow together. Enterprise tenet: Uphold operation principles of integrity,efficiency,good quality,innovation,service Establilsh a good work atmosphere of unit,confraternity provide the high-quality products and service for customers. Enterprise goals: Attention to customer needs,quickly and efficiently provide the high-quality products and service for customers. We treat our customer as "partner relationship"to grow up together.
Delivery Time (Normally)
1. Product in stock: 1-3Days.
2. Large quantity: Around 10-15Days
3.Customized product: Depends on the prograss for the project and neogiate when project confirmed
1. who are we?
We are based in Guangdong, China, start from 2003,sell to North America(30.00%),Western Europe(30.00%),Eastern Europe(13.00%),Eastern Asia(13.00%),South America(8.00%),Southern Europe(6.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
PCB & PCBA
How can I place an order?
A4: (1) Agreement is achieved on the product price and product specifications.
(2) We make proforma invoice for your confirmation.
(3) When you agree on the proforma invoice, you make the payment.
(4) We deliver the goods after we receive your payment.
What is your lead time?
A5: Sample: Immediately, normally within 1day after payment received.
Small order: About 3-5 working days after payment received.
Bulk order: About 5-7 working days after payment received.
Q6. What are your terms of payment?
A6: Wire Transfer(T/T), Western Union, PayPal, Ali Pay, Transfer in WeChat, Credit Card, Trade Assurance, etc.
Q7. How about the shipping?
A7: Usually, we will deliver the goods via Express like FedEx, DHL, TNT, UPS, China Post and so on. Shipping price will depend on the goods quantity volume and weight.
Audited Supplier 
){kind=link}