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Melsen Power Technology Co., Ltd.

LiFePO4 Battery, Lithium Battery, Lipo Battery manufacturer / supplier in China, offering Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs, OEM Wholesale 48V 30ah DIY SANYO Lithium Ion Battery Pack, Lithium Ion 48V Rechargeable Battery for Back up System and so on.

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Supplier Homepage Product NMC Battery Pack Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

FOB Price: US $15-5,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $15-5,000/ Piece
Get Latest Price
Port: Shenzhen, China
Production Capacity: 10000packs/Day
Payment Terms: L/C, T/T, Western Union

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Basic Info
  • Model NO.: PL12334S1P
  • Usage: Car, Bus, UPS, Electric Power, Lighting, Electric Bicycle, Boat, Solar System, Golf Cart, Wheelchair
  • Discharge Rate: High Discharge Rate
  • Electrolyte: Acid
  • Rechargeable: Chargeable
  • Size: Adjustable
  • Capacity: 12.5ah-200ah
  • Warranty: 2years
  • Case: Blue Film or Metal Case
  • Charger: Available
  • Transport Package: Packed by Foam and Case and Carton
  • Origin: Hunan, China
  • Type: Lithium-Ion Batteries
  • Nominal Voltage: 12/24/36/48/72/96/144/300V
  • Shape: Flat Battery
  • Installation: Packaged
  • Weight: 1-200kg
  • Voltage: 3.2V-400V(Increase Voltage in Series)
  • Certificate: Un38.3/MSDS/UL/Ce/RoHS
  • Protection: PCB/PCM/BMS
  • Company Type: Reputed Factory
  • Trademark: Melsen
  • Specification: lifepo4 and NMC flat pouch cell
  • HS Code: 8507802000
Product Description
Multi-purpose vehicle 12V 33Ah lifepo4 battery packs

1. Battery Parameter

We have battery packs from 12v to 400v with 12ah to 200ah, here taking 12v 33ah LIFEPO4 battery as an example.More battery packs are available, please see the left of this web page.
1Cell TypeF95145265Lifepo4
2Array Mode1P4S 
3Nominal Capacity33Ah at23±2ºCStandard charge and discharge
4Minimum Capacity33Ah 
5Nominal Voltage12V 
6Energy396Wh at23±2ºC 
7AC Impedance≤14mΩAt 1kHz with 100%SOC1KHZ
8Charging Voltage14.6±0.15V 
9Discharge End Voltage9.4±0.2V 
10Standard Charging MethodCCCV and CCis16ATempeature23±2ºC,charge end with 4h or current drops to 0.02
11Max.Charge Current66ATemperature23±2ºC
12Standard Discharging Method33AConstant Current Discharge with0.5C
13Constant Discharge Current≤66ATemperature23±2ºC (23±2ºC)
14Max.Discharge Current99A±5ADischarge Time: Less than 5 s(at23±2ºC)
15Max.Pulse Discharge Current250A±5ADischarge Time: Less than 9ms(at23±2ºC)
16Cycle life≥2000cycles1C Charge, 1C discharge and Capacity
Retention ≥70% of initial capacity
17Operating Temperature0ºC~45ºCCharging Operating
-20ºC~45ºCDischarging Operating
18Storage Characteristic1 monthTemperature-20ºC~50ºC
3 monthsTemperature-20ºC~45ºC
1 yearTemperature-20ºC~20ºC

2. Main Features of Our EV Battery Cells

1. High energy density

 lifepo4 battery cellLiNiCoMn battery cell  (ab.NCM battery)
weight energy density150wh/kg200wh/kg
volume energy density280wh/L334wh/L

2. Low internal resistance
Methods of reducing the internal resistance:
**Using carbon coated aluminum foil
**Multiple electrode tab design
**Increasing the width of electrode tab
**Coating PVDF on battery separator
**Pore-creating artificially

3.Long lifespan

Usable for more than 2,000 charge-discharge cycles

> 4 times than lead acid battery
> 2 times than li ion battery

4.Excellent performance in high and low temprature 
Usable in extremely cold and hot environments (-20 to 60 ºC)

3. Some Related Application Case

Each battery module in parallel is fixed with steel parts,then put them together by pull rob.After this,there are covers to protect battery with case and BMS.

We support OEM
Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

4. More other battery packs

4.1.  our 3.6v modules , designed for big electric vehicles like 10kwh / 20kwh / 30kwh.
Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

4.2.  our 12v battery pack , designed for car start or small energy storage or solar. We also could make 12v with other capacity from 12ah to 200ah, please contact me for details.
Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

4.3.  our 24v battery pack , designed for small energy storage or solar. Other capacity is also available from 12ah to 200ah.
Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

4.4.  our 48v and 72v battery pack , designed for small electric vehicles like motorcycle or golf cart . Other capacity is also available from 12ah to 200ah.
Multi-Purpose Vehicle 12V 33ah LiFePO4 Battery Packs

5. Our battery cells catalog

Melsen uses Lithium Iron Phosphate (LiFeP) batteries for electric vehicle conversions. The battery cells utilize the latest advancements in nanotechnology.

All of our battery packs(12v-400v,12ah-200ah) are made of those following lithium ion pouch cells.
These cells are very safe in normal operation, DO NOT cause fires as the early Lithium Phospate batteries.

The selected batteries solve the Safety concerns of being in an Electric Vehicle (EV) / Electric Car Conversion Kit, every cell has a built-in safety device if punctured or damaged, will vent to the atmosphere making the cell much safer.

Compared to lead acid battery, it is 4 time lighter in weight , and 4 time longer in lifespan.
Compared to li ion battery, it is 2 time lighter in weight , and 2 time longer in lifespan.
Compared to lithium ion square battery, it is 0.5 time lighter in weight , but much safer when using.

Model NO.
Discharge & Charge
37.5&12.5 A
37.5&12.5 A
 60&20 A
54.6&18.2 A
75&25 A
90&30 A
99&33 A
120&40 A

6. Our company introduction

The largest lithium-ion battery production base for new energy vehicles.

Melsen Power Technology Co,Ltd. is a professional manufacturer engaging in research,development,production,marketing and service of lithium ion pouch battery cell, battery pack and battery management system.Those products are widely used in EV,HEV,UPS,solar and wind system and remote control products.

Located in Hunan National Economic Development Zone in 2012, Melsen power has registered capital of RMB 50 million and been proved by government to be a national high tech enterprise.

Melsen Power has more than 800 staffs,including 20 advanced managing people, more than 40 development and research engineers.It has building area of 120,000 square meters and 3 factory bases ,those are,Ningxiang base ,Changsha base and Shengyang base.

We has been pursuing quality policy of continuous innovation and improvement to meet customer's requirements.To realized full automation, we has introduced advanced foreign equipment and technology from Korea and Germany. To ensure the best quality,we has passed I S O 9 0 0 1 , I S O 1 4 0 0 1 and O H S A S 1 8 0 0 1 certifications.

Not only in local market,our products are also exported to abroad market like Euro,USA,India,Australia,Korea. Our sales volume reached 100 millions in 2015.

We stick to the company concept of human orientation and efficient innovation and we welcome customization.So, lets join together to promote the development of renewable energy and friendly environment.

7. Melsen Customer Feeback
We are happy with your battery quality. I've also been very happy with your good support,
let's continue discussions and work on more,tks.----Michael (from Berlin,Germany)

8. Order Information
Sample is avaliable and welcome.
Trade term: FOB Shenzhen or Guangzhou; EXW, CIF,DDU and DDP are available.
Delivery time: 7 working days for sample order, 15- 25 working days for mass order.

9. FQA

Do the batteries have a warranty?

§ Yes, currently 2 years; extended warranties are also available.

How long do the batteries last?

§ 10 years / 200,000 KM (124,275 miles) [calculated based on 100km battery pack]

§ 2000 charges & discharges at 100%.

§ This means approximately 10 years of normal use 200,000 KM. (124,275 miles)
§ Normal use is defined as 20,000km/year. (12,500 miles/year)


Do you use Lead Acid Batteries?

NO WE DO NOT! Our reasons:
§ Lead Acid Batteries do not allow as many charge & discharge cycles as advanced lithium batteries
§ Lead Acid batteries degrade after 300 charge cycles in an electric car until they expire, approximately 1.5 -2 years of driving
§ Not cost effective to change your battery pack every two years
§ Lead Acid is HEAVY, and reduces your range, doesn't supply continuous power


Welcome you to visit our production base and to check our production lines!

If any requirements on those lithium polymer battery pack, please feel free to contact me without hesitate.

Salesman: Rebecca Gong
Tel: +86 15773256831

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