It depends on lithium ion battery , please contactus for details .

Yes ,but we will provide it oncesample finished.

Yesof course. Please contact with our sales representatives to confirm the lithium ion battery PVC color.

es, but you have to tell us before shipment.

Lithium Iron Phosphate chemistry(LFP,LiFePO4) isone of the most safe Lithium-Ion technology, its chemistryeleminates the risk of explosion or combustion due to high impact overchargingor short circuit situation.

:Passed the overcharge, overdischarge, over temperature, short circuit and other safety tests,no fire, no explosion at anycircumstance;price to ensure our customers benefit ;

Yes , you can send a device to us,we can help to test and design a better solution for lithium ion battery .

Yes ,but inspection report must beinformed before making mass production .

Yes , All lithium batteries would betest before delivery .

Never exaggerate the capacity &Safest with longerlifespan.

Yes, our lithium ion battery pack include BMS, which suitable for your device.

Warmly welcome. Once we have your schedule, we will arrange theprofessional sales team to follow up your lithium ion battery case.

Packed into cartons. We also can strictly according to your request once confirm the quotation.

Please send us ainquiry and show us your interested lithium battery models & quantity.

Fast charging is not recommended as it’s harmful for thebattery .

Wewill offer you 1 year guarantee and 10 years free maintenance. If there are any lithium battery problems, please inform us,we will offer you positive solutions.

We may notupdate some new lithium battery models online in time, you could contact us anytime to check,and we can provide customized design.

lithium battery samples willtakes 5-7 business days. It depends onquantity.

The best 18650 battery depends on the need of device youuse it in . You should choose an 18650 battery that is meet your device’sminimum discharge requirement, and then focus on discharge capacity.

The batteries should be stored at room temperature, chargedto about 30% to 50% of capacity.We recommend that batteries be charged about once per half 3months to prevent over discharge.

After charge,test the batteries’ initial state. When thebatteries are normal, discharge to 0V at 0.5C. Observe changes in batteryappearance.

After charge ,tested the batteries’initial state and capacity. Charge to 10.0V at 3C current, then charge to 0.01Cat CV mode .Observe changes in battery appearance.

We have factory’s current standardpackage ,customized print logo shall be complied to buyer’s requirements, andthe extra cost will be charged by the buyers ,for more details ,pleasecontact us.

Yes, cheaper price with more biggersize lithium battery orders.

Usually wedon’t have, because customers have their different requests, even the voltageand capacity are the same, other parameters maybe different.

You can sent the photo &video of theproblems to us,or send back the physical problem battery by express to us, our engineerwill analyze the defective battery within 24 hours.

After charge, test thebatteries' initial state. Whenthe batteries are normal, discharge to 0V at 0.5C. Observe changes inbattery appearance.

Yes ,you haveright to specify the lithium battery brand .we will take it to design a newsolution .

Of course , ifyou want to any assistance ,I will help you.

Yes , we willtest all lithium battery that make sure the quality .

A: The deliveryperiod from battery date for 12 months If the battery is proved inmanufacturing process defect formation rather than the user abuse and errorcaused by use of this company is responsible for replacement battery.

A: The li-ion batteriesshould be stored at room temperature, charged to about 30% to 50% of capacity.We recommendthat batteries be charged about once per half 3 months to prevent overdischarge.点击打开链接点击打开链接

A: Yes, but the li-ion battery specification could be provided once samples were approval.

A：According to Civil Aviation regulation, as long as the rated power of your power bank no more than 100Wh, quantity no more than 2pcs, you can take on an airplane.

A: Most FedEx Ship locations do not accept dangerous goods shipments, except for permitted IATA Section II lithium batteries. We can't arrange battery shipment by Fedex directly, but this doesn't means shipment can be a problem for us, with over 12 years experience, we have a lot of forwarders with rich experience, shipment is easy for us.

A: The charging time for a lithium battery is affected by capacity and charging current.Formula is :　Charging time= Battery capacity(C)/charging current(I)But actually charging time is longer than the theoretical value, because there's enenrgy loss during charging.Contact person: Ashlee PengEmail:poeae..........com..........com

A: Lithium ion battery pack inner voltage testing standard is UL.Simulate the battery at the altitude of 15240m to see if it will leak liquid or puff.Progress: Charge the battery at 1C untill the voltage reaches 4.2V ,cut off current is 10mA, then put it into a low pressure box wtih 11.6Kpa air pressure and temperature of 20±3 centigrades for 6 hours, the battery won't explode, get on fire , leak...

A: No , it won't affect the capacity when the 18650 battery cell is with PCM protection. LIthium ion battery short circuit protection time is about 300uS,just like connecting a big capacitance and being changed for one time.Contact person: Ashlee PengEmail:poeae..........com..........com

A: A 18650 battery won't explode when short circuit if there's a PCM inside. Because the PCM will cut off the power when short circuit.Contact person:Ashlee PengEmail:poeae..........com..........com

A: A lot of customers asked such question. And the answer is "no". Because when the mobile phone is on, it means it's discharging, and charging represents it's supplying power for the phone, so it's charging and discharging at the same time, which may lead to voltage chaos, and then the circuit board inside will get heating. It may also cause instant current backflow If ther's a phone call when it...