Литиевые элементы 18650 цилиндрическая ячейка lifepo4 5000 мАч 3 6 В литиевая батарея высокой емкости для электрического велосипеда
5,50-6,30 $
Стабильный ток и длительный срок службы с экономичным 21700 4000 мАч 3 7 В литиевая ячейка для банка питания или электростанции
- Категория: >>>
- Поставщик: Shenzhen Tongke New Energy Co. Ltd.Shenzhen Ltd.
Сохранить в закладки 1601358242120:
Описание и отзывы
Характеристики
ITEM(21700-40EB) | SPECIFICATION | ||
Normal capacity | 4000mAh | Standard charge method Standard discharge method | |
Minimum capacity | 3950mAh | ||
Normal voltage | 3.6V | ||
Charging voltage | 4.20±0.05 V | ||
Discharge ending voltage | 2.75±0.05 V | ||
Standard charging current | 0.5C(2000mA) | ||
Standard discharge current | 0.2C(800mA) | ||
Max continuous charge current | 0.2C(0≤T≤15℃) | ||
0.5C(15≤T≤30℃) | |||
1.0C(30≤T≤50℃) | |||
Max continuous discharge current | 0.2C(-2O≤T≤0℃) | ||
1.0C(O≤T≤20℃) | |||
3.0C(2O≤T≤45℃) | |||
1.0C(45≤T≤60℃) | |||
Max pulse discharge current | 5C(10s) | ||
Max recommended charge anddischarge cell body temperature | Charge:0~45℃ Discharge:-20～60℃ | ||
Maximum short term allowable charge and discharge cell body temperature.Charging and discharging at these conditions will shorten cell cycle life. | Charge: 60℃ Discharge:75℃ | ||
Storage Temperature | One month | -20℃～50℃,≤80%RH | |
Three months | -20℃～45℃,≤80%RH | ||
One year | -20℃～ 25℃,≤75%RH | ||
Internal resistance | ≤20mΩ(AC Impedance,1000 Hz,50%SOC) | ||
Weight | ≤100g | ||
Q: how can we guarantee quality?
A:We are ISO9001 certified and strictly follow international standard quality control procedures
100% testing made for each battery before shipment.
Q: what can you buy from us?
A:18650 lithium-ion batteries (solar type, power type)
21700/26700/32700/32140 lithium iron phosphate batteries,etc.
Q: why should you buy from us not from other suppliers?\t
A：We strictly monitor every step of the lithium battery production process, and carefully select every raw material .After many years' accumulation , TK now stands in the leading position of lithium primary battery, and have established cooperation around the world.
Q: what services can we provide?
A:Our policy is to provide more faster & safer & easier service for our customers.
Accepted Delivery Terms: FOB,CIF,EXW；
Accepted Payment Currency:USD,EUR,HKD,CNY;
Accepted Payment Type: T/T;
Q: What's certificate?
A: ur batteries have been tested & certified by MSDS/UN38.3/BIS/UL /ROHS/CB and etc,other certificates demanded can be available according to your requirements.
Q: What's warranty?
A: Battery ful check done for bulk cargo before shipment if there is any problem for quality within 12months(as contracted terms).
we will provide you replacement considerably.
Q: What's price?
A: We provide reasonable price and recommend suitable batteries to our customers.
Q: What is stand lead time after order confirmation?
A:Usualy for small volume order,about 5-6days,and for mass order around 10-15days.
Q: What's MOQ?
A: We can accept small MOQ at the beginning cooperationg to help customer learn about us firstly.
Q: What is your terms of packing?
A: Generally, we pack our batteries in carton .lf you have legally registeredpatent, we can pack the goods in your branded boxes after getting your authorization letters.
Q：What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'l show you the photos of the products and packages before you pay the balance.
Q: How do you make our business long-term and good relationship?
A: We keep good quality and competitive price to ensure our customers benefit ;
We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Q:could I get some samples for testing before mass order execution?
A:Definitely,we offer you samples free of charge and you only need to pay a little shipping cost.
A:We are ISO9001 certified and strictly follow international standard quality control procedures
100% testing made for each battery before shipment.
Q: what can you buy from us?
A:18650 lithium-ion batteries (solar type, power type)
21700/26700/32700/32140 lithium iron phosphate batteries,etc.
Q: why should you buy from us not from other suppliers?\t
A：We strictly monitor every step of the lithium battery production process, and carefully select every raw material .After many years' accumulation , TK now stands in the leading position of lithium primary battery, and have established cooperation around the world.
Q: what services can we provide?
A:Our policy is to provide more faster & safer & easier service for our customers.
Accepted Delivery Terms: FOB,CIF,EXW；
Accepted Payment Currency:USD,EUR,HKD,CNY;
Accepted Payment Type: T/T;
Q: What's certificate?
A: ur batteries have been tested & certified by MSDS/UN38.3/BIS/UL /ROHS/CB and etc,other certificates demanded can be available according to your requirements.
Q: What's warranty?
A: Battery ful check done for bulk cargo before shipment if there is any problem for quality within 12months(as contracted terms).
we will provide you replacement considerably.
Q: What's price?
A: We provide reasonable price and recommend suitable batteries to our customers.
Q: What is stand lead time after order confirmation?
A:Usualy for small volume order,about 5-6days,and for mass order around 10-15days.
Q: What's MOQ?
A: We can accept small MOQ at the beginning cooperationg to help customer learn about us firstly.
Q: What is your terms of packing?
A: Generally, we pack our batteries in carton .lf you have legally registeredpatent, we can pack the goods in your branded boxes after getting your authorization letters.
Q：What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We'l show you the photos of the products and packages before you pay the balance.
Q: How do you make our business long-term and good relationship?
A: We keep good quality and competitive price to ensure our customers benefit ;
We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
Q:could I get some samples for testing before mass order execution?
A:Definitely,we offer you samples free of charge and you only need to pay a little shipping cost.
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