Custom design and made lithium ion ( li ion) battery packs
Custom made lithium ion battery packs
Phenomenal performance for professionals
Off-the-shelf battery packs rarely meet the exact requirements of modern electronic devices. That’s why custom lithium-ion battery solutions are in high demand. Here are a few key reasons:
What is a Custom Lithium-Ion Battery Pack?
- Size and Dimensions: Standard batteries often don’t fit perfectly into electric vehicles, portable electronics, or specialized devices. A custom battery ensures a seamless fit.
- Discharge Current Requirements: Different devices have different power demands. A custom rechargeable battery can be tailored to match the exact wattage and performance needs of your application.
- Custom Connectors and Cable Lengths: Whether you need XT60 connectors or other terminal types, a custom pack allows you to define cable length and connector type for perfect compatibility.
EGbatt specializes in fully customized lithium-ion, LiFePO4, and LiPo battery packs. We offer complete customization including:
We also provide compatible 18650 battery chargers to match your packs—making EGbatt your one-stop solution for all custom battery needs.
Energy Storage
Voltage and capacity
BMS (Battery Management System)
Connector terminals
Rack mounted
Battery fuel gauges
Communication protocols (CAN, RS232, RS485, BQ solutions)
Outer casing options (metal, ABS, PVC, or shrink wrap)
Custom lithium battery packs
How to make lithium battery pack? Normally, We will request a basic battery technical from you. This will ensure we can give a best solution on custom lithium ion battery pack. So we know what BMS and cells are best suitable. Also There are many battery chemistries, and EGbatt battery engineer knows what fit best for your design.
14” model
16” model
Custom lithium ion battery pack
Make a Custom 18650 Battery Pack with EGbatt
The 18650 lithium-ion cell is one of the most popular choices for custom battery packs due to its high energy density, reliability, and versatility. To create the ideal custom battery pack with EGbatt, we’ll need some key information from you:
Preferred 18650 Cell Brand
If you have a preferred brand or specific model of 18650 cell you'd like us to use, let us know. We're able to source high-quality cells from trusted manufacturers like LG, Samsung, Panasonic, and others.
Applications of custom 18650 battery pack :
Ultrasound devices, Drug delivery systems, Patient monitors, Imaging systems: popular brands like Spectrum Imaging;ACD Systems;Orbital Atk;ECRM;Sirona;Nexus Publications, medical/hospital cart, Ventilators, Defibrillators: Advanced Life Support (ALS), Automated External Defibrillators (AED), Implantable Cardioverter Defibrillators and Implantable Cardioverter Defibrillators (ICDs), Surgical tools: includes ENT Instruments Haemostatic Forceps Diagnostic Instruments Home Surgical Kit Anesthesia, Motorized wheelchairs, Medical UPS Systems. Electric bike battery.
10KWh 48V 200Ah LiFePO4 lithium Powerwall battery pack for residential
The 10kWh 48V 200Ah lithium Powerwall is a high-performance solar home lithium battery, built with advanced LiFePO4 battery cells for maximum safety, efficiency, and durability. Designed for residential solar energy storage, this 10KWh lithium battery delivers stable power output, over 6000 cycles of long life, and excellent thermal stability.
Perfect for both new and retrofit solar installations, this wall-mounted 10kWh 48V 200Ah LiFePO4 battery offers compact size, easy installation, and wide inverter compatibility. Whether you're upgrading your off-grid system or adding backup power to your grid-tied home, this solar lithium battery provides a reliable, safe, and future-ready energy storage solution.
12V 100Ah Mini Group 22NF Lithium RV Battery
Power Your RV Smarter with Mini 12V 100Ah Lithium Battery – Compact Group 22NF LiFePO4 Solution
The Mini 12V 100Ah RV lithium battery powers RVs, camper vans, and mobile off-grid systems that require a compact footprint and dependable performance. By using EVE Grade A LiFePO4 cells and a dedicated smart BMS, it delivers stable output, improved safety, and an extended cycle life—all within a space-saving design. Moreover, thanks to its lightweight construction and true drop-in compatibility, the RV lithium battery installs easily into Group 22NF battery boxes. As a result, it provides a seamless and efficient upgrade from traditional lead-acid batteries for modern RV applications
12V 200Ah Slim Ultra-thin RV Lithium Battery
12V 200Ah Ultra-thin RV lithium Battery – Slim & High Performance
This 12V 200Ah ultra-thin lithium RV battery delivers a perfect balance of high capacity and compact design. Its slim form factor allows easy installation in tight spaces, making it ideal for RVs, camper vans, boats, and off-grid energy systems. Built with premium LiFePO4 cells and an advanced BMS, this battery ensures stable power output, long cycle life, and enhanced safety. It supports high-rate discharge while protecting against overcharge, over-discharge, and short circuits. Lightweight and maintenance-free, the lithium 12v 200Ah slim Rv battery fits most standard battery compartments and simplifies system upgrades. Perfect for users seeking reliable, portable, and space-saving energy solutions.
12V 6Ah UPS Lithium Battery
12V 6Ah LiFePO4 Lithium Battery for UPS Backup
Compact and powerful, this 12V 6Ah LiFePO4 lithium battery delivers 76.8Wh of reliable energy for 0.5KVA UPS systems. It features a 7.5C max discharge rate (45A), enabling instant high current for critical loads. The built-in smart BMS ensures safety with protection against overcharge, over-discharge, short circuit, and extreme temperatures. Weighing just 1kg and measuring 150×68×94mm, it’s over 60% lighter than traditional lead-acid batteries. With fast charging, low self-discharge, and convenient MR30 plug-and-play terminals, it’s an ideal choice for compact, high-performance UPS backup power applications.Model: EG-1206A
- Type: UPS Lithium 12V 6Ah Battery
- Chemistry: LiFePO4 Cells
- Rated Voltage: 12.8V
- Rated Capacity: 6Ah
- Energy: 76.8Wh
- Max Discharge Current: 45A (7.5C)
- Best Match: UPS ≤ 0.5KVA
15kWh 48V 300Ah Server Rack Lithium Battery for Home Solar Energy Storage
48V 300Ah 15KWh Server Rack Battery bank
This 15kWh 51.2V 300Ah lithium server rack battery bank uses high-quality Grade A LiFePO4 cells to deliver long service life, strong safety performance, and a practical design suited for modern energy storage systems. With a 51.2V nominal voltage, the battery works smoothly with most 48V hybrid inverters. As a result, it fits well in home solar storage systems, off-grid installations, and backup power applications. In addition, the system supports parallel connection of up to 16 units, which allows users to expand capacity as their energy needs grow. It also provides more than 6,000 deep charge cycles, built-in WiFi and Bluetooth for remote monitoring, and an integrated fire suppression system. Together, these features make it a reliable and scalable energy solution for both residential and commercial use.
16kWh 48V 320Ah Lithium Battery for Solar Home Energy Storage
16KWh 48V 320Ah LiFePO4 Lithium battery for Home Energy Storage
This 16kWh 51.2V 320Ah caster-mounted lithium battery powers homes, businesses, and off-grid solar systems reliably and for the long term, using premium Grade A LiFePO4 cells. It features an intelligent BMS, LCD touchscreen, and plug-and-play design to ensure safe operation, real-time monitoring, and easy integration with major inverters. Industrial-grade casters, IP65 protection, and parallel expansion allow you to install, move, and expand the system easily and flexibly.Model: EG-48V320Ah-WL
Product Name: 16kWh 51.2V 320Ah Floor-Standing Lithium Battery with WheelsBattery Type: 48V 320Ah Grade A LiFePO4 Cells
Cycle Life: >9000 Cycles (@25°C, 80% DOD)
IP Rating: IP65 Water & Dust Protection
Communication Protocols: RS485 / CAN
Display: Touch Screen LCD
Dimensions: 850(with wheels)*453*240mm34.4(with wheels)*17.7*9.5inch
Mobility: Equipped with 4 Universal Roller Wheels
Application: Residential Solar Storage, Backup Power, Off-grid, Hybrid Systems, Commercial Use
180V 6Ah 7.5C High-Rate UPS LiFePO4 Lithium Battery for 8KVA UPS system
180V 6Ah UPS Lithium battery with 7.5C Discharge for 8KVA Power output backup
The 180V 6Ah UPS Lithium Battery is built with Grade A LiFePO4 cells, offering exceptional stability, long life, and high safety standards. Designed for rack-mounted UPS systems up to 8KVA, it ensures fast response and reliable backup in mission-critical environments like data centers, server rooms, and telecom systems. This 180V 6Ah lithium iron phosphate battery supports up to 7.5C high-rate discharge and features an advanced BMS with full protection. With a compact 3U design and over 10 years of calendar life, it’s the ideal replacement for bulky lead-acid systems—offering higher efficiency, lighter weight, and smarter performanceModel: EG-18006A
- Type: UPS Lithium 192V 6Ah Battery
- Chemistry: LiFePO4 Cells
- Rated Voltage: 192V
- Rated Capacity: 6Ah
- Energy: 1152Wh
- Max Discharge Current: 45A
- Best Match: UPS ≤ 8KVA
180V 9Ah Output Power 12KVA LiFePO4 UPS lithium Battery
180V 9Ah UPS Lithium battery with 7C Discharge for 12KVA Power output backup
The 180V 9Ah UPS Lithium Battery is built with Grade A LiFePO4 cells, offering exceptional stability, long life, and high safety standards. Designed for rack-mounted UPS systems up to 12KVA, it ensures fast response and reliable backup in mission-critical environments like data centers, server rooms, and telecom systems. This 180V 9Ah lithium iron phosphate battery supports up to 7C high-rate discharge and features an advanced BMS with full protection. With a compact 2U design and over 10 years of calendar life, it’s the ideal replacement for bulky lead-acid systems—offering higher efficiency, lighter weight, and smarter performanceModel: EG-18009A
- Type: UPS Lithium 192V 9Ah Battery
- Chemistry: LiFePO4 Cells
- Rated Voltage: 192V
- Rated Capacity: 9Ah
- Energy: 1728Wh
- Max Discharge Current: 63A
- Best Match: UPS ≤ 12KVA
- Easy Expansion: supports up to 8 battery packs in parallel.
- Dimensions (L x W x H)：650*438*88MM
1KWh 2KWh Portable Power Station for home backup outdoor
1KWH 2KWh Portable Power Station for Home Backup Outdoor
The 1kWh portable power station lithium battery uses durable LiFePO4 cells to deliver safe backup power for camping, travel, and emergencies. Lightweight and solar-compatible, it’s an excellent portable power station for camping or powering small devices and a camping fridge on short trips. The 2kWh portable power station lithium battery features a pure sine wave inverter and larger capacity, ideal for fridges, CPAP, tools, or eBikes. As a solar-powered portable power station, it provides clean and quiet energy for blackouts, RVs, and off-grid use. Both models are designed for reliability and affordability, with options ranging from individual units to portable power station wholesale supply, making them a practical choice for home backup and outdoor power.
230V 1000W off grid hybrid Micro inverter with battery storage
230V 1000W off grid hybrid micro inverter
The 230V 1000W off grid hybrid micro inverter with battery storage is an advanced residential solar energy solution that integrates PV input, battery storage, AC coupling, and on/off-grid switching in a single compact system. By combining multiple functions, it helps homeowners lower electricity bills, reduce reliance on the grid, and enjoy reliable backup power when needed. This 230V 1000W micro inverter off grid system offers full flexibility, allowing you to configure different operation modes according to your energy needs. With remote Wi-Fi and local monitoring via APP, you can easily track inverter status, optimize energy usage, and enjoy true energy independence.
230V 800W on off grid hybrid Micro inverter with battery storage
Micro Inverter Model: EG-HX800
This 230V 800W on off grid hybrid micro inverter with battery storage is a versatile solution that supports both grid-tied and off-grid operation. In on-grid mode, it synchronizes with the utility grid to power household loads directly from solar panels and can export surplus electricity to the grid. In off-grid mode, it stores excess energy in a 48V lithium battery and delivers up to 800W of reliable AC power during outages. The 230V 800W on off grid hybrid micro inverter with battery storage helps lower energy bills, maximize solar usage, and provide seamless backup power when you need it most.
24V 150Ah Forklift Lithium Battery LiFePO4 Electric Pallet Jack Battery
Choose Cylindrical Cells Like 18650 or 26650 for Your Custom Battery Pack
If space and dimensions are not a limitation in your design, cylindrical lithium-ion cells such as 18650 or 26650 are an excellent choice for custom battery packs.
These standard cell formats are widely available and come in a range of capacities—making them suitable for both small and large battery pack configurations. Their high availability in the global market means faster sourcing, easier prototyping, and quicker transition to mass production.
By choosing commonly stocked cylindrical cells, you can reduce lead times and ensure a stable supply chain for your product.
48V lithium iron phosphate battery Pack
Cylindrical 26650 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 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
