The battery resource, built by people who fit batteries for a living.
Curated, cross-referenced product data on thousands of cells — from sealed lead-acid stand-by to lithium iron phosphate. Spec sheets that match the master, real stock numbers, and fitment guides written by techs, not marketers.
Shop the catalog
Three doorways into the same catalog — pick whichever matches the question you arrived with.
Manufacturers
EnerSys, Power-Sonic, Vision, Tenergy, and 28 more. Each brand page links straight to its product lines and series.
Explore brands By chemistryBattery types
Lead-acid (AGM, gel, flooded), lithium-ion (LiFePO4, NMC), nickel, primary cells. Compare across vendors at a glance.
Browse types By use caseApplications
UPS, automotive starting, marine deep-cycle, mobility, emergency lighting, fire and security. Cross-references included.
Find your fitFrom the knowledge base
Long-form articles on the chemistries, formats, and decisions you face when picking a battery.
AGM vs. flooded vs. gel: pick the right SLA
Most people don't need the most expensive option. A practical guide to picking the SLA construction that fits the duty cycle you actually have.
LithiumLiFePO4 in cyclic standby — when it pays back
Cycle count, depth of discharge, temperature and total cost of ownership over a 10-year horizon. Includes a calculator you can use against your own numbers.
UPSSizing a UPS battery for a real load
Manufacturer runtime curves are best-case. Here's how to size with end-of-life capacity in mind, including BCI group substitutions when the original is unavailable.
Trade and B2B accounts
Net-30 terms, multi-user purchasing, customer-specific pricing, and order history all in one place.