The company is committed to the production of all batteries are brand new A grade, full capacity, low internal resistance, there is a lot of B products now on the market, the low-capacity battery acts as a high-capacity batteries for sale, pro Please pay attention.
Our priority shipments sprayed yards battery, no spray inventory codes, the default shipping is not Coding, Coding Coding did not affect the quality.
4000mAh 3.7V lithium polymer battery with protection board safer
Product Dimensions: Thickness Width Length 6x60x90mm
Batteries Capacity: 4000mAh
Nominal Voltage: 3.7V
Charging current: Standard charge: 0.2C; Fast Charge: 0.5C
Standard charging method: 0.2C CC (constant current) charge to 4.25V, then CV (constant voltage 4.2V) charge till charge current 0.05C
Maximum charge current: 0.5C
Continuous discharge current: 0.5C
Maximum discharge current: 1C
Discharge cut-off voltage: 2.75V
Discharge temperature: -20 Celsius ~ +60 Celsius
Charging time: 12hrs (standard); 3hrs (fast)
Charge and discharge times: more than 500 times
Self-discharge: less than 400uA
Protection board parameters
Limiting protection: 2 ~ 3A
Overcharge limit pressure: 4.2 + /-0.05V
Over-discharge pressure limit: 2.9 + /-0.10V
* Due to the over-discharge protection board limit pressure, measured capacity is slightly lower than the nominal capacity of the batteries.
Other technical parameters of the product specifications shall prevail.
Battery with protection board, to prevent over charge, over discharge, over current, short circuit and other functions.
This product is mainly used in Bluetooth headsets, smart watches, watches, mobile phones, Tablet PC (MID), PDA, mobile backup power, MP3, MP4, mobile speakers, Bluetooth speakers, amplifiers, navigation systems (GPS), tachograph, mobile phones, toys and other electronic devices.
More models, size and capacity, welcome customized (MOQ and other details, please contact customer service).
To ensure that the battery capacity to maintain the level recommended batteries and battery packs at -20 ~ 35 Celsius, low humidity, no corrosive gas storage conditions
Avoid storing batteries at high temperatures or high humidity, otherwise it will lead to battery leakage, rust, and lower capacity.
may lead to long-term storage batteries and battery capacity decreases, and requires 1-3 charge / discharge cycles in order to achieve maximum discharge capacity.
Three months after placing the battery needs charging and discharging cycle time.
Do not allow reverse charging, the battery should be connected by polar accurate, can not reverse.
Do not allow short circuit, otherwise it will cause permanent damage.
The battery can not use under extreme conditions, such as: extreme temperature, deep cycling, extreme overcharge and over discharge.
Keep batteries stored in a cool dry place, if a large number of battery storage or shipping batteries must first discharged.
Do not solder directly to the battery.
If the battery has noise, heat, leakage and other anomalies, please stop using it immediately.
Do not fire or attempt to open the battery may burn or harmful substances.
Do not allow the old battery or use half of the batteries with new batteries together, or will cause over-discharge.
Do not cut the shell and remove the battery outer tube.
Do not allow the battery into the water.
The battery should be charged before use good power.
Charging Method according to our technical specifications.
Use the appropriate charger.
The battery should avoid the use of sealed, should provide appropriate ventilation, otherwise the battery may produce hydrogen in the presence of an ignition source situation will cause an explosion.
Do not attempt to separate or bear squeeze and collision battery pack could cause the battery to generate heat, flaming, alkaline electrolyte spill will damage the skin and eyes will corrode clothing.
The battery should be away from the kids, if they are swallowed, contact your doctor immediately required treatment.
When the battery is not in use, should be removed from the device.
When using a new battery for the first time after long-term storage or use, fully charged before use.
When the battery is hot, do not touch until it cools down.
When the battery is found to decrease energy use should turn off the device, in order to avoid over-discharge.
When you pull out the battery pack, battery terminals should hold the line and not holding.
After the battery if the battery is hot, before charging again to be put in the ventilation without direct sunlight cool.
How to buy
1, some of the products before shipment will detect function properly before delivery, so there will be split at the scene;
2, some plastic products, inevitably, there is the appearance of scratches, please understand;
3, different shooting environment, a display, will have a certain color, it is inevitable;
4, check the appearance of no damage before sign, if there is damage, please let courier personally signed return, you have nothing to lose;
5, have any questions, please contact online customer service, such as customer service is not online, please contact us, we will help you solve the problem the first time;
6, due to the many types of online products, will inevitably lead to less inventory inaccuracies lead to shortages of goods, etc., in the event we restock as soon as possible and the first time issued a product, please understand.
7, we probably can not guarantee 100% no problem, but we can guarantee 100% solve the problem.
Special regulations battery warranty
Because batteries are consumable items, and the cause of the damage is extremely complex, the commodities perform the following special warranty measures.
“Users receive the product the same day, please check the battery appearance, if found leaking, bulging, damaged, remain intact and handed out within 48 hours return it to us, (please choose express, after the actual purchase shipping insurance shipping insurance firm commitment). Must not disassemble or forced to use. Our staff will check your waybill number to check whether the time out of your hands within 48 hours. Over this time you are deemed to accept the product.
“Users receive the product the same day, please check whether the battery can be charged on electricity, use a digital voltmeter to check the voltage is normal. If you can not charge or voltage is not normal, intact and handed out within 48 hours return it to us, (please choose express, freight shipping insurance after the purchase is actually borne by the insurance company) must not disassemble or forced to use . Our staff will check your waybill number to check whether the time out of your hands within 48 hours. Over this time you are deemed to accept the product.
“No operating records be returned within 48 hours after the user sign, as the quality of user acceptance of the battery.
“Buyers are starting upon receipt of goods, product quality problems within 7 days shipping freight borne by the restaurant (return shipping after purchase shipping insurance is actually borne by the insurance company)! Within 30 days, the product quality problems return shipping buyer and seller each pay half, the seller provides free repair service! Within three months, the product quality problems shipping to the buyer, the seller provides free repair service! More than three months of goods, the shop offers repair services, costs can be reduced discretion.
“Man-made damage not offer free repair service, but, as the case may be exempt from part of the cost.
OUR business integrity! Hope parents who will understand!
1, freight shipping has been set template, choose their own city;
2, express our cooperation is SF, Shen Tong, tact, rhyme, if you need other courier service, please contact us to re-confirm the shipping costs;
3, the arrival time: the province is generally next to (holiday delays), other provinces depending on distance, usually 3-7 days (holidays, delays);
4, EMS E-mail Bao, a post office land projects, slower than air, but the country seamless delivery, cheaper than the cost of air transport EMS;
5, all battery products, you can not take delivery of the air, it will be slower than normal air;
6, when using a shopping cart, will be automatically added to the high courier, please contact us to modify postage re-payment;
7, if you find the default courier costs obviously unreasonable, then please contact us to determine the specific postage.
8, Hong Kong, Macao, Taiwan and foreign countries and other regions, postage need to re-confirm.
1 Appearance Requirements
Finished battery can not occur scratches, smudges, deformation, discoloration, leakage and other undesirable phenomena.
2, the warranty period
12 months warranty from the date of the factory code.
Lithium batteries should be kept in a cool, dry, ventilated environment, avoid contact with ignition sources and heat.
Battery specifications basis having the specified temperature range for storage, optimum storage temperature 0-25 Celsius, optimum humidity of 60 ± 25%.
Batteries should be stored at room temperature, should be charged to 40-60% of the electricity. To prevent excessive battery discharge, it is recommended every three months according to the standard charging method on a single charge, such as storage for more than a year, the proposed annual standard way of charging and discharging a charge and discharge cycle to activate the battery.
To ensure proper use of the battery, please read the instruction manual before using.
Do not dispose in fire.
The battery charger can not reverse polarity.
Can not short circuit the battery.
Avoid excessive shock and vibration battery.
Do not disassemble or distort the battery.
Can not be immersed in water.
The battery can not be with other types and models of batteries.
Keep out of the reach of children.
Please use the appropriate charger to charge the battery.
Do not use beyond the specification maximum charging current to charge the battery.
Charging voltage: Do not exceed the maximum specified in this specification charging voltage.
Charging temperature: Batteries should be within the specified temperature range for charging and discharging.
Please use the constant voltage charging mode, do not reverse the positive and negative, to avoid damage to the battery.
Discharge current does not exceed the maximum rated discharge current specifications. Large current will cause the battery to generate heat and reduce capacity.
Discharge Temperature: Battery must be within the specified temperature range specification discharge.
Over-discharge: The battery charge is then instantly put off immediately without damaging the battery. However, if the long put, the battery will be damaged. In the long-term storage, it may be because the battery self-discharge and cause the battery is over-discharge state. Therefore, in order to avoid excessive battery discharge, must live storage.