Custom Lithium Battery Pack Manufacturing: An OEM Buyer’s Guide

Custom Lithium Battery Pack Manufacturing: An OEM Buyer’s Guide

|WangDaniel
Custom battery packs require more than selecting voltage and capacity. This OEM buyer’s guide explains how to define electrical loads, dimensions, cell chemistry, BMS functions, testing, compliance, MOQ and lead...
Battery Manufacturing Process: From Cell to Final Testing

Battery Manufacturing Process: From Cell to Final Testing

|WangDaniel
See how lithium-ion battery packs are made from cell selection and matching to welding, BMS integration, insulation, final testing, and traceability. This guide explains the battery manufacturing process from an...
18650 vs 21700 Battery Cells: Which Is Better for a Custom Battery Pack?

18650 vs 21700 Battery Cells: Which Is Better for a Custom Battery Pack?

|WangDaniel
Moving a design from 18650 to 21700 cells looks like a free upgrade on paper. Same chemistry family, same nominal voltage, more energy per cell, fewer parts to weld. Then...
Upgrading From Lead-Acid to LiFePO4: What Industrial Buyers Need to Know

Upgrading From Lead-Acid to LiFePO4: What Industrial Buyers Need to Know

|WangDaniel
Nobody calls their battery supplier because the cells failed. They call because the fuel gauge lies, the charger faults, or a forklift lost 500 kg of counterweight nobody accounted for....
Solid-State Batteries: Separating the Hype From What Actually Ships

Solid-State Batteries: Separating the Hype From What Actually Ships

|WangDaniel
You can buy a solid-state battery today; it will either be tiny or not entirely solid. Here is what verifiably ships in 2026, which Wh/kg claims survive at pack level,...
Sodium-Ion Batteries: Should OEM Buyers Care Yet?

Sodium-Ion Batteries: Should OEM Buyers Care Yet?

|WangDaniel
Every few weeks a supplier deck lands on a buyer's desk promising sodium-ion is cheaper than lithium and runs at -40°C. Here's the honest engineering read: where sodium already beats...
How We Build a Battery Pack for Cleaning Equipment: From RFQ to Delivery

How We Build a Battery Pack for Cleaning Equipment: From RFQ to Delivery

|WangDaniel
A custom battery pack for cleaning equipment is not designed by voltage and capacity alone. For floor scrubbers, sweepers, vacuum systems, and cleaning robots, the battery must match the machine’s...
Why LFP Is Winning: What It Means for OEM Battery Buyers

Why LFP Is Winning: What It Means for OEM Battery Buyers

|WangDaniel
Five years ago I had to defend specifying LFP. Now NMC is the one that needs a reason. Here's why LFP took over most of the market, where it still...
IP-Rated and Ruggedized Battery Packs for Field and Outdoor Equipment

IP-Rated and Ruggedized Battery Packs for Field and Outdoor Equipment

|WangDaniel
A "sealed" IP67 pack can still fill with water from the inside, and vibration kills more field packs than immersion ever does. Here's how IP and IK ratings really work,...
Custom Lithium Battery Pack Manufacturing: An OEM Buyer’s Guide

Custom Lithium Battery Pack Manufacturing: An OEM Buyer’s Guide

|WangDaniel
Custom battery packs require more than selecting voltage and capacity. This OEM buyer’s guide explains how to define electrical loads, dimensions, cell chemistry, BMS functions, testing, compliance, MOQ and lead...