You can rest assured to buy customized 540mah 3C Digital Products Li Polymer Battery from us. We look forward to cooperating with you, if you want to know more, you can consult us now, we will reply to you in time!
● Nominal capacity: 540mAh
● Nominal voltage: 3.7V
● Standard Charge: 6.5 hours
● Charge Temp.10-45℃
● Discharge Temp.-10℃ to 60℃
● Over Charge/Discharge Protection
● Short Circuit Protection
● Dimensions: 4x18x45mm
● 1-year Warranty
● Cycle Life: Over 300 times
● Widely used in communications, factories, finance, lighting energy, digital products, 3C consumer electronics and other fields.
Model Number | Nominal Capacity | Nominal Voltage | Standard Charge Time | Charge Limited Voltage |
EN401845 | 540mAh | 7.4V | 6.5 hours | 8.4V |
Rated Capacity | 540mAh | ||||||||
Minimum Capacity | 500mAh | ||||||||
Nominal Voltage | 7.4V | ||||||||
Charge Limited Voltage | 8.4V | ||||||||
Discharge Cut-off Voltage | 6.0V | ||||||||
End-of-charge Current | 0.02C | ||||||||
Standard Charge | Charge with 0.2C(1080mA) up to limited Voltage, Charge with limited Voltage up to end-of-charge current. | ||||||||
Standard Discharge | Using 0.2C(108mA) constant current discharge to the Discharge cut-off Voltage. | ||||||||
Maximum Continuous Charge Current | 1C(540mA) | ||||||||
Maximum Continuous Discharge Current | 1C(540mA) | ||||||||
Maximum Pulse Discahrge Current | 1C | ||||||||
Operating Temperature Range |
Charge 0~45℃ Discharge -10~60℃ |
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Storage Temperature Range |
-10~45℃ less than 1month -10~35℃ less than 6month |
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Operating And Storage Humidity Range | 75% RH or less | ||||||||
Weight | Approx 260g | ||||||||
Open Circuit Voltage | 3.75V-3.95V | ||||||||
Internal Impedance |
Single Cell: ≤95Ω Battery Pack: ≤140Ω |
Item | Condition | Specification | |||||||
input Voltage | input Voltage B+ to B- | -0.3~+12V | |||||||
Overcharge | Detection voltage | 4.250±0.025V | |||||||
Release voltage | 4.100±0.030V | ||||||||
Detection delay time | 0.80~1.50S | ||||||||
Over discharge | Detection voltage | 3.000±0.100V | |||||||
Release voltage | 3.000±0.100V | ||||||||
Detection delay time | 90.0~160.0ms | ||||||||
Over discharge current | Over current | 5.0~10.0A | |||||||
Delay time | 6.00~12.0ms | ||||||||
Shortage Protection | Short detection delay time | 240~360us | |||||||
Release Conditions | Cut off load | ||||||||
Normal current consumption | Normal current consumption of PCM | Max 8.00 uA | |||||||
0V charger | allowed 0V charger | Yes | |||||||
IR resistance | IR of PCM | ≤65.00 mΩ | |||||||
NTC/ resistance | / | / | |||||||
The size of final PCM | The length of final PCM | 14±0.15mm | |||||||
The width of final PCM | 4.0±0.10mm | ||||||||
The thickness of final PCM | Max2.40mm |
"Dongguan Encore Energy Co.,LTD, is established in 2016, registered capital is RMB10000000, with workers 200; It’s a high-techenterprise specialize in the R&D, production, and marketing for the environmental friendly lithium-ion battery;
Our products including Lithium-ion polymer battery, Cylindrical lithium-ion battery, Lithium-ion phosphate battery and relatedlithium-ion polymer battery and battery pack. Encore Energy has fully absorbed the advanced international management experience, and successfully passed ISO9001:2008 quality system certification since the establishment of the company. All products comply with the RoHS requirements and most of them passed UL, CE, UN38.3, KC, FCC certifications. Our mission: “focus on customer needs, supply competitive products with service”, dedicated to unremitting efforts to ensure the long-term interests of customers."
No | Cylinder/Capacity | Size ( D*L)mm | Certification | Remarks | |||||
1 | 302020-80mAh | 3.0*20.0*20.8 | UL1642 | ||||||
2 | 302530-180mAh | 3.0*25.0*30.0 | UL1642 | ||||||
3 | 351213-35mAh | 3.6*12.0*13.5 | UL1642 | ||||||
4 | 353035-350mAh | 3.5*30.0*35.0 | UL1642 | ||||||
5 | 372135-250mAh | 3.7*21.0*35.0 | UL1642 | ||||||
6 | 381424-80mAh | 3.8*14.0*22.0 | UL1642 | 5C Fast Charge | |||||
7 | 401020-50mAh | 4.0*10.0*20.0 | UL1642 | ||||||
8 | 401030-90mAh | 4.0*10.0*30.0 | UL1642 | ||||||
9 | 401220-70mAh | 4.0*12.5*20.0 | UL1642 | ||||||
10 | 401230-125mAh | 4.0*12.0*30.0 | UL1642 | ||||||
11 | 402030-200mAh | 4.0*20.0*29.5 | UL1642 | Normal and 15C High Rate | |||||
12 | 410929-80mAh | 4.1*9.0*29.0 | UL1642 | ||||||
13 | 421217-50mAh | 4.2*12.0*17.0 | UL1642 | ||||||
14 | 432126-190mAh | 4.3*21.0*26.0 | UL1642 | ||||||
15 | 451220-70mAh | 4.5*12.0*20.0 | UL1642 | ||||||
16 | 455080-2100mAh | 4.5*50.0*80.0 | UL1642 | ||||||
17 | 462558-720mAh | 4.6*25.0*58.0 | UL1642 | ||||||
18 | 465782-3450mAh | 4.6*57.0*82.0 | UL1642 | 4.35V | |||||
19 | 500930-90mAh | 5.0*9.0*28.0 | UL1642 | 5C Fast Charge | |||||
20 | 501015-50mAh | 5.0*10.0*15.0 | UL1642 | ||||||
21 | 501225-110mAh | 5.0*12.0*25.0 | UL1642 | ||||||
22 | 501227-110mAh | 5.0*12.0*25.0 | UL1642 | 5C Fast Charge | |||||
23 | 501447-280mAh | 5.2*14.0*47.5 | UL1642 | 3A Discharge | |||||
24 | 502030-250mAh | 5.0*20.0*30.0 | UL1642 | ||||||
25 | 502530-300mAh | 5.0*25.0*30.0 | UL1642 | ||||||
26 | 502540-500mAh | 5.0*25.0*38.5 | UL1642 | ||||||
27 | 503035-500mAh | 5.0*30.0*35.5 | UL1642 | ||||||
28 | 503040-550mAh | 5.0*30.0*40.0 | UL1642 | ||||||
29 | 504040-480mAh | 5.0*40.0*38.0 | UL1642 | ||||||
30 | 504050-1000mAh | 5.0*40.0*50.0 | UL1642 | ||||||
31 | 5267105-5000mAh | 5.2*67.0*105.0 | UL1642 | ||||||
32 | 551245-220mAh | 5.5*12.0*45.0 | UL1642 | ||||||
33 | 552530-410mAh | 5.5*25.0*30.5 | UL1642 | ||||||
34 | 553825-500mAh | 5.5*38.0*25.0 | UL1642 | ||||||
35 | 554270-1900mAh | 5.5*42.0*70.0 | UL1642 | ||||||
36 | 581038-180mAh | 5.8*10.0*38.0 | UL1642 | ||||||
37 | 582235-380mAh | 6.0*22.5*37.5 | UL1642 | ||||||
38 | 582751-825mAh | 5.8*27.0*51.0 | UL1642 | ||||||
39 | 601818-140mAh | 6.0*18.0*18.0 | UL1642 | ||||||
40 | 602025-250mAh | 6.0*20.0*25.5 | UL1642 | ||||||
41 | 602030-300mAh | 6.0*20.0*30.5 | UL1642 | ||||||
42 | 602040-450mAh | 6.0*20.0*39.5 | UL1642 | ||||||
43 | 602240-500mAh | 6.0*22.0*40.5 | UL1642 | ||||||
44 | 603048-850mAh | 6.0*30.0*48.0 | UL1642 | ||||||
45 | 603759-1400mAh | 6.0*37.0*59.0 | UL1642 | ||||||
46 | 651448-450mAh | 6.5*14.0*48.0 | UL1642 | ||||||
47 | 653030-500mAh | 6.5*30.0*28.0 | UL1642 | ||||||
48 | 653040-800mAh | 6.5*30.0*40.5 | UL1642 | ||||||
49 | 701250-380mAh | 7.0*12.0*50.0 | UL1642 | ||||||
50 | 701340-300mAh | 7.0*13.0*40.0 | UL1642 | ||||||
51 | 703351-1100mAh | 7.0*33.0*51.0 | UL1642 | ||||||
52 | 705070-3000mAh | 7.0*50.0*70.0 | UL1642 | ||||||
53 | 733960-1800mAh | 7.3*39.0*60.0 | UL1642 | ||||||
54 | 782551-1000mAh | 7.8*25.0*51.0 | UL1642 | ||||||
55 | 783048-1150mAh | 7.8*30.0*48.0 | UL1642 | ||||||
56 | 801437-370mAh | 8.1*14.0*37.5 | UL1642 | 3A Discharge | |||||
57 | 801534-350mAh | 8.1*15.5*34.5 | UL1642 | 3A Discharge | |||||
58 | 802035-480mAh | 8.0*20.0*33.0 | UL1642 | ||||||
59 | 802040-600mAH | 8.0*20.0*40.0 | UL1642 | ||||||
60 | 802230-400mAh | 8.0*22.0*30.0 | UL1642 | ||||||
61 | 802530-500mAh | 8.0*25.0*30.0 | UL1642 | ||||||
62 | 803860-2000mAh | 8.0*38.0*60.0 | UL1642 | ||||||
63 | 822129-400mAh | 8.2*21.0*29.0 | UL1642 | ||||||
64 | 833338-1280mAh | 8.3*33.0*38.0 | UL1642 | ||||||
65 | 102020-300mAh | 10.0*20.0*20.5 | UL1642 | ||||||
66 | 103450-1800mAh | 10.0*34.0*50.0 | UL1642 |
Cylindrical Battery | |||||||||
1 | 50300-45mAh | 5.5*31.0 | UL1642 | ||||||
2 | 65180-40mAh | 6.5*18.5 | UL1642 | 4C Discharge | |||||
3 | 60270-55mAh | 6.0*27.0 | UL1642 | ||||||
4 | 72530-200mAh | 7.2*53.0 | UL1642 | ||||||
5 | 75100-20mAh | 7.5*10.0 | UL1642 | ||||||
6 | 75300-100mAh | 7.5*30.5 | UL1642 | 3A Discharge | |||||
7 | 75350-130mAh | 7.5*35.0 | UL1642 | ||||||
8 | 08120-50mAh | 8.3*12.5 | UL1642 | ||||||
9 | 08160-60mAh | 8.3*16.5 | UL1642 | ||||||
10 | 08300-120mAh | 8.5*30.0 | UL1642 | ||||||
11 | 08400-180mAh | 8.5*40.5 | UL1642 | 1.2A Discharge | |||||
12 | 08500-260mAh | 8.3*50.5 | UL1642 | 1.5A Discharge | |||||
13 | 08570-280mAh | 8.5*57.5 | UL1642 | 3A Discharge | |||||
14 | 09130-65mAh | 9.5*13.5 | UL1642 | ||||||
15 | 09260-180mAh | 9.5*26.5 | UL1642 | ||||||
16 | 10100-60mAh | 10.5*11.0 | UL1642 | Normal,3C Fast Charge | |||||
17 | 10150-80mAh | 10.5*15.0 | UL1642 | ||||||
18 | 10350-300mAh | 10.0*35.0 | UL1642 | ||||||
19 | 10380-300mAh | 10.0*38.0 | UL1642 | ||||||
20 | 10400-280mAh | 9.8*41.0 | UL1642 | 3A Discharge | |||||
21 | 10440-330mAh | 10.0*44.0 | UL1642 | ||||||
22 | 10540-50mAh | 10.0*54.0 | UL1642 | ||||||
23 | 1254-50mAh | 12.0*54.0 | UL1642 | ||||||
24 | 14540-85mAh | 14.0*54.0 | UL1642 | ||||||
25 | 13250-400mAh | 13.0*25.0 | UL1642 | ||||||
26 | 13300-500mAh | 13.0*30.0 | UL1642 | ||||||
27 | 13350-550mAh | 13.0*35.0 | UL1642 | ||||||
28 | 13400-550mAh | 13.0*40.0 | UL1642 | ||||||
29 | 13420-750mAh | 13.0*42.0 | UL1642 | ||||||
30 | 13450-650mAh | 13.0*45.0 | UL1642 | ||||||
31 | 14500-800mAh | 14.0*50.0 | UL1642 | ||||||
32 | 15380-680mAh | 15.0*38.0 | UL1642 | ||||||
33 | 16350-650mAh | 16.0*35.0 | UL1642 | ||||||
34 | 17350-850mAh | 17.0*35.0 | UL1642 | ||||||
35 | 18350-800mAh | 18.0*35.0 | UL1642 |
1. Standard export carton packaging or Custom-made Package
2. Mode of Transport:
By express UPS/DHL/FEDEX/TNT (It takes 3-25 working days to arrive).
By air cargo (It takes about 1 week to arrive)
By sea shipment (It takes about 1 month to arrive)
3. Delivery 3-25 working days after payment and packing confirmation.
1. Failure to observe the following precautions may result in battery leakage, explosion or fire.
- Do not immerse the battery in water or allow it to get wet.
- Do not use or store the battery near sources of heat such as a fire or heater.
- Do not reverse the positive (+) and negative (-) terminals.
- Do not connect the battery directly to wall outlets or car cigarette-lighter sockets.
- Do not put the battery into a fire or apply direct heat to it.
- Do not short-circuit the battery by connecting wires or other metal objects to the positive (+) and negative (-) terminals.
- Do not place the battery in a microwave oven or pressurized container.
- Do not use the battery in combination with primary batteries (such as alkaline batteries) or batteries of different capacity, type or brand.
- Do not use the battery if it gives off an odor, generates heat, becomes discolored or deformed, or appears abnormal in any way.
If the battery is in use or being recharged, remove it from the device or charger immediately and discontinue use.
- Do not pierce the battery casing with a nail or other sharp object, break it open with a hammer, or step on it.
- Do not attempt to disassemble the battery in any way.
- Keep the batteries out of the reach of children. If a child somehow swallows a battery, seek medical attention immediately.
- If the battery leaks and electrolyte gets in your eyes, do not rub them. rinse them with clean running water and immediately seek medical attention.
If left as is, electrolyte can cause eye injury.
- The isolated measures are needed between battery (the bare Al layer at side and top sealing) and the PCB, and also between battery and electric equipment,
especially avoid the Al layer in packing foil contact to cathode or anode (including electric equipment), otherwise this can cause battery leakage or swelling.