Custom design and made lithium ion ( li ion) battery packs

 48V lithium iron phosphate battery Pack

Cylindrical 18650 cells

Cylindrical 26650 cells

Cylindrical 32700 cells

Lithium Polymer battery in Parallel and in seires.

Voltage – The pack’s rated voltage is determined by the number of lipo cells placed in series. Instead of indicating the voltage, packs will sometimes indicate the number of cells in series (indicated by #S, where # is the number of cells in series). To determine the voltage of these battery pack, you multiple the number of cells in series by the cell voltage (3.7v).

1S = 3.7V
2S = 7.4V
3S = 11.1V
4S = 14.8V

Capacity – The battery capacity is based on two things. The first is the capacity of a single cell, and second, how many blocks are placed in parallel (indicated on some packs as #P, where # is the # of parallel blocks). The reason we refer to these in blocks is because in order to double the capacity of a pack, the total number of cells cells must be double. On a 1S pack (single cell in series), a cell placed in parallel will the double the capacity. However, to double the capacity of a 2S pack, a 2S block must be placed in parallel with the existing block (Figure 3). Some examples:

1s2p = 2 cell (single cell voltage, twice the capacity)
2s1p = 2 cell (twice the voltage, single cell capacity)
2s3p = 6 cell (twice the voltage, three times the capacity)

Lithium Polymer Battery Cell like LP103450 LP803860

Lipo battery LP103450 2000mah

lithium polymer LP706090

lipo cell LP902550 3.7v

For example: Our model 103450 like above picture, it’s 10mm(Thickness)*34mm(Width)*50mm(Height), and you can calculate the capacity with its Volume times Ratio（0.09-0.13） like above 10*34*50*0.115=1955mAh. So, we can offer 2 different model. 1 with 2000mah, another with 1800mah.

Remember the Ratio is changing regarding the volume but generally, you can treat it 0.11-0.12

Let’s know the max dimension of your battery and ask your vendor for an off-the-shelf model of lipo battery, this can help your project start much faster, this is really important if you want make your project going smooth and not let the battery delays your project.

Applications of custom Lithium polymer batteries :

• Portable Equipment:
  Post machine, handset, portable printer, data terminal;
• Medical Instruments:
  Ecg monitoring instrument, ultrasonic, breath machine, electrocardiograph
• Industrial instrument and communication instrument:
  Flaw detector, fusion splicer, optical power meter, gas detector
• Consumer Electronics:
  PC, POS machine, electric tool, laptop. Ebike, emergency light power, data camera
• Portable Equipment:
  Portable printer, handset. Electric toy: RC car/ boat/helicopter etc.

LifePo4 custom made battery packs

Custom LiFePo4 18650 Pack

Custom 12v lithium ion battery pack

Custom 48v LiFePo4 Battery Pack

Why USE A LiFePo4 as custom lithium battery packs

• LiFePO4 batteries include advanced protection-circuit-modules (PCM) that confer overcharge, over-discharge and short circuit protection ,etc.
• High energy density: Triple of lead-acid battery and twice of nickel battery.
• Wide range of operating temperature: charging temperature 0℃~45℃; discharging temperature -20℃~65℃.
• Good charging retention: batteries can be stored for long period with high residual capacity, because of low self-discharge.
• High rate discharging: the battery can keep discharging under 10C rate and its instant pulse discharge is over 20C.
• Good security: more safe than common lithium ion battery and lithium polymer battery.
• No memory effect: there is no need to discharge the battery before charging.
• Long cycle life: more than 3000 cycles.
• Environmental friendly: No cadmium, lead or mercury are added.
• Low cost: Fe and phosphoric acid are common components in the earth.

Applications of custom Lithium polymer batteries :

Custom lithium battery packs LiFePO4 battery with highest grade of safety, high energy density, long cycle life, and low cost, so that lithium iron phosphate battery (LiFePO4 battery) is regarded as the best choices for new age power sources. Coremax custom made lithium LiFePo4 battery packs a complete line of 12V 24V 36V 48V 60v 72V. The LiFePO4 batteries for use in solar energy storage, robotic, medical, instrument, Lithium marine industry, Lithium forklift battery pack and much more.

Working Current and Peak Current

Working Current/ Constant Discharge Current means the current the device draws in general, if you don’t have an engineer to know about it, let us know the watt of the device.

Peak Current also called pulse current or Max current which is mostly used to describe current that may happen in seconds when device just start and may have a high drain current requirement(normally seen when there is motor inside)

Expected Working hours of the Battery

It’s really important that you let us know the capacity of the battery you want to make. Battery capacity is measured in mAh or Ah.

Working hours are very important as that will decide the battery pricing, as well as battery size.

Dimensions or Size Requirement

Just make sure the custom lithium ion battery packs will fit in your devices or applications. In some cases that you might have already wanted the battery to be in-house, let us know what room is left for the battery

Find out which case is suitable for your custom battery design

Available 3 types  casing for custom made battery packs: PVC, Plastic casing, metal casing

Which Connector Should I use?

Popular types like JST, JSH.Molex, Anderson,  The cable and connector is very important also. Different AWG and different connector will sustain different current. If the cable and connector is not suitable, could be a big problem also.

How to make a battery pack ? hihest energy density—lightweight, long-lasting, and ideal for advanced battery solutions.

At EGbatt, we specialize in designing and manufacturing custom lithium-ion battery packs tailored to your specific needs. Whether it’s lithium-ion or lithium-polymer, we offer a wide range of chemistries and configurations to meet your performance, size, and application requirements.

Backed by years of industry expertise, EGbatt delivers battery solutions with superior reliability and performance. Our team is committed to helping you achieve optimal energy solutions through fully customized battery designs.

We use only premium-grade cells and components in every pack we build. All EGbatt batteries adhere to strict safety standards and meet our rigorous quality assurance benchmarks.

Explore our custom lithium-ion battery manufacturing capabilities, request a quote, or contact us directly to discuss your project. Let EGbatt power your innova