Custom Lithium Battery Pack & OEM Manufacturer | EGbatt
When an off-the-shelf pack does not fit the voltage, shape or communication your product needs, we design one that does. EGbatt is a factory OEM/ODM for LiFePO4, NMC and Li-ion packs — from a 1-off prototype to container-loaded production.
What We Build
- Voltage: 3.2 V cells up to 800 V battery systems.
- Capacity: 0.5 Ah wearable cells to 1,000+ Ah stationary banks.
- Form: cylindrical (18650/21700), prismatic, pouch; in custom enclosures, frames or IP-rated boxes.
- Output: bare terminals, Anderson/MC4, or sealed harness with your connector.
Cell Formats & Chemistries
| Format | Best for | Notes |
|---|---|---|
| 18650 / 21700 | Power tools, medical, robotics | Proven, swappable, high C-rate |
| Prismatic LiFePO4 | ESS, industrial, forklift | Safe, long-life, easy thermal design |
| Pouch / Li-Po | Thin / odd-shape devices | Lightest, needs careful enclosure |
| NMC cylindrical | High energy density | Max Wh/kg for portable gear |
BMS & Communication Options
Every pack gets a BMS matched to the application: balancing, current limiting and thermal cut-off as standard; CAN bus, RS485, SMBus or Bluetooth for host telemetry. We hand over the protocol sheet so your firmware team can read SoC, temperature and fault codes directly.
Certifications We Build To
- UN38.3 — air/sea transport (mandatory)
- CE / RoHS — EU
- IEC62133 — portable cell safety
- UL1642 / UL1973 — North America (cells / stationary)
- CB / KC / PSE — optional by market
From Inquiry to Mass Production
- Inquiry: you send spec, volume and certification target.
- DFM review: we flag risks (thermal, mechanical, compliance) and propose a bill of materials.
- Prototype: first article built and electrically validated.
- Validation: cycle, drop, thermal and (if needed) third-party certification.
- MP: mass production with incoming-inspection and end-of-line test on every pack.
Custom vs Off-the-Shelf
| Off-the-shelf | Custom pack | |
|---|---|---|
| Fit | Standard only | Your exact envelope |
| Lead time | Days | 2–4 wks to prototype |
| Cost at volume | Higher/unit | Lower/unit |
| Differentiation | None | Branded, defensible |
Industries We Serve
- Medical carts & portable devices
- AGV / AMR & warehouse robotics
- Telecom & solar storage
- Power tools & e-mobility
- Industrial instruments
Start from our custom lithium-ion pack page or the industry solutions hub.
Related Industrial & ESS Products
HV51314 16.08kWh LiFePO₄ Battery Module for Scalable Residential & Commercial Energy Storage Applications
EGbatt 16.08 kWh commercial energy storage system — factory-direct from a LiFePO4 battery manufacturer and OEM/ODM partner, supplied wholesale and in bulk with private-label options.
- Performance: 6,000+ cycles @ 80% DoD with Grade A automotive cells and smart BMS protection; 5–10 year warranty.
- Compliance: Certified to CE, RoHS, UN38.3 and IEC62619 (UL available); CAN / RS485 / RS232 for inverter and EMS integration.
- Best for: Factory and commercial peak shaving; Microgrid and islanded sites; Solar + storage for warehouses.
GRHV High Voltage Rack-Mount Battery System | 96.5-209kWh Modular LiFePO4 ESS
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Frequently Asked Questions
How do I get a custom lithium battery pack made?
Send the basics: nominal voltage, capacity (Ah/Wh), maximum dimensions, target connector, communication bus (CAN/RS485/SMBus) and the certifications your market needs. EGbatt runs DFM review, builds a prototype, validates electrically and environmentally, then moves to mass production — typically 2–4 weeks to first article depending on complexity.
What is the MOQ for custom battery packs?
Prototypes start from 1–10 pcs. Mass production typically begins at 100–500 pcs; standard cell formats and enclosures can go lower. Volume is the dominant driver of per-unit price, so share your 12-month forecast up front.
How much does a custom lithium battery cost?
It scales with cell grade, BMS sophistication, mechanical enclosure and certification. Expect an NRE for tooling/validation plus a per-unit price that drops steeply with volume. We quote both separately so you can see exactly what you pay for.
What certifications do your batteries have?
Cells and packs are built to UN38.3 (transport), with CE, RoHS and IEC62133; UL1642/UL1973 on cells and optional CB, KC and PSE by market. Tell us the destination country and we map the exact mark list before production.
Which chemistries can you build?
LiFePO4 for safety- and cycle-life-critical jobs (energy storage, industrial), NMC for maximum energy density (portable/high-power), and cylindrical 18650/21700 or Li-Po for compact devices. We recommend the chemistry from your duty cycle, not the catalog.
What BMS and communication protocols do you support?
Smart BMS with active/passive balancing, over-current/over-temp/over-voltage protection, and host links over CAN bus, RS485, SMBus or Bluetooth; UART for OEM integration. We deliver the communication protocol document with every pack.
Request a Quote
Send your voltage, capacity, dimensions and certification target. We return a DFM-aware quote and prototype plan — usually within one business day.
