DIY Lithium Battery Pack: How to Build One Safely
Building a DIY lithium battery pack: cell matching, series/parallel basics, protection boards, spot welding and the safety checks that decide whether a home build is sound.
Battery Pack Guides and Insights
Practical guides from the Jetray Technology engineering team on specifying, charging and looking after custom lithium battery packs.
AGV Battery Charging: Options and Best Practices
AGV battery charging explained: full-cycle charging vs opportunity charging, charge-rate trade-offs, connector and communication choices, and how charging strategy shapes pack design.
What Batteries Are Used in Medical Devices?
Which batteries power medical devices: primary lithium coin cells in meters, rechargeable lithium-ion packs in monitors and mobile equipment, and the documentation device makers ask for.
Backup Power for Medical Equipment: Battery Options
Backup power for medical equipment: sizing runtime, choosing between internal packs and external UPS-style batteries, switchover behaviour and testing routines.
Best Lithium Golf Cart Batteries: How to Choose
How to choose lithium golf cart batteries: 36V vs 48V systems, capacity sizing, charger compatibility, single-pack vs multiple-unit layouts and the checks before converting from lead-acid.
LiFePO4 vs Lithium-Ion: Which Chemistry Fits Your Product?
LiFePO4 vs lithium-ion compared: energy density, discharge behaviour, thermal stability, service life in qualitative terms, cost drivers and how to choose per application.
18650 vs 21700 Cells: Capacity, Size and Cost Trade-Offs
18650 vs 21700 cells compared: dimensions, per-cell capacity using documented examples (3.4Ah 18650, 5.0Ah 21700), cell count, thermal and cost trade-offs for pack design.
Replacing Lead-Acid with Lithium: A Practical Checklist
A practical checklist for replacing lead-acid with lithium: measuring the compartment, matching voltage, checking the charger, planning weight change and confirming BMS behaviour.
How to Spec a Custom Battery Pack: Voltage, Capacity, BMS
How to spec a custom battery pack: define voltage and capacity from the load, set continuous and peak current, choose the BMS feature set, and hand over drawings that get quoted fast.
How Long Do Custom Lithium Battery Packs Last? Cycle Life Explained
Cycle life explained: what a cycle is, how depth of discharge, C-rate, temperature and calendar aging change service life, and how to spec a pack for the life you need.
Tell us about your battery project
Send your device requirements — voltage, capacity, current, space and quantity — and our engineering team will evaluate cell selection, configuration and battery management against them.