• Design Studio
• Polymer Molding
• Batteries & Packs
• Battery Chargers
• Power Supplies
• DCDC Converters
• Automotive
• CCTV / Security
• Inverters
• Frequency Converters
• Custom Products
• Technical Resources
• Surplus
• Consulting
• Blog
• Power Humor
• About Us
• Policies
• Site Map
• Our EU Branch
• View Cart

Power and Battery Technical Resources for Design Engineers

Frequency converters

Battery backups keep video systems alive for buses, emergency vehicles and vehicle instrumentation

24VAC to 24VAC uninterruptible power supply

Off-the-shelf battery chargers from PowerStream

Battery Resources

Battery Chemistry Tutorial and FAQ

Battery Technology Comparison Chart

How to Store Batteries (Lead Acid, SLA, LiIon, NiMH, NiCad)

Chart of Standard Cylindrical Battery Sizes

Chart of Standard Sealed Lead Acid Battery Sizes

Primary and Coin Lithium Battery Primer

How To Use a Battery Charger

Designing with Batteries

How to Design Battery Packs
How to Calculate Battery Run Time
Battery Run Time Calculator
Battery Capacity under Pulsed Conditions
Engineering Design Notes on Battery Powered Devices
Discharge Curves for AA Alkaline and NiMH Cells
Discharge Curves Zinc-Air button cells
Discharge Curves for 9V Alkaline and Carbon Zinc Batteries
Discharge Curves for CR123A Lithium Manganese Dioxide Batteries
Battery Power Connector FAQ
Special Design Rules for Large Battery Packs
Custom Battery Packs
Frequency Dependance of Batteries
Capacity versus Charge Voltage for Lithium-ion Chemistries
Why do batteries leak white stuff, and what is that white stuff?
Batteries with low ferromagnetism
How to solder lithium polymer battery nickel foil tabs
Internal resistance of batteries

How to Charge Batteries
How to Charge Sealed Lead Acid Batteries
Fast Charging Sealed Lead Acid Batteries
How do Battery Chargers differ from Power Supplies?
How To Charge NiCad Batteries
How to Charge NiMH Batteries
How to Charge Lithium Ion Batteries
How Peak Charge Voltage affects Capacity and Cycle Life of Lithium Ion Batteries
How Peak Charge Voltage affects Capacity and Cycle Life of LiFePO4 Batteries
How to Charge Lithium Iron Phosphate Batteries
How to Charge Nickel Zinc Batteries

Custom Design Specification Downloads
How to Specify Custom Battery Chargers
How to Specify Custom Power Supplies

Other Power Electronics Resources:
Wire Gauge and Current Capability Chart

Temperature rise in electronic enclosures--Calculator
400Hz power tutorial
Metal selection for designing heat sinks
How to Design with Wall Mount Power Supplies
24VAC tutorial
Design Software for Switchmode Power Supplies
Compliance Resources
Power Glossary
Worldwide Country Household Voltages and Plugs
Switching Power Supply Terminology
Fusing Currents for American Wire Gauges and Metric Gauges Cu, Al, Fe, Sn wires
Converting Watts to Amps???
Will a modified sine wave inverter hurt my laptop power supply?
Converting Watts to VA, kW to kVA
Charging Supercapacitor Banks
IEC Plugs and Sockets
NEMA Box type definitions
NEMA Plug and Socket type definitions
Converting dbm to milliwatts and watts
ATX and ITX motherboard connector pin outs
How to get 24V from an ATX power supply
How to make a rechargeable power bank

Educational Resources
The Automobile Storage Battery its Care and Repair 1922
Battery Chemistry Tutorial and FAQ
How to Convert microns in wavelength to inverse cm in wavenumber
How to Measure DC electrical current
Locomotive low voltage guide
Car battery FAQ
Can a car battery be used for deep discharges, for example solar energy storage?
Voltage sag during engine starting

DC to AC Power Inverter Resources
Inverter FAQ

UPS Resources
UPS Questions & Answers
24VAC UPS and battery backup
Frequently Asked UPS Questions

Other Resources
HotMetal Pro 6.0 Patches
Vapor Pressure of the Chemical Elements
Calculating the weight of a soap bubble