JETRAY / Battery engineering & sourcingShenzhen, China[email protected] ↗
JETRAYEnergy Storage BatteriesBlog
BLOG & TECHNICAL GUIDES

A working library for better specifications.

Practical reading about selection, integration and purchasing. Each guide includes source references and connects to a relevant project discussion.

Engineering workspace published on the Jetray website
FEATURED BLOG GUIDE / SYSTEM-LEVEL ENERGY PLANNING

Usable Battery Storage Energy: How to Define a DC-to-AC Acceptance Test

Define the measurement boundary, reserve, auxiliary loads and repeatable test conditions before accepting a storage system’s usable energy claim.

Read the featured guide ↗
6 original guides · Jetray editorial team · Updated 5 November 2026
Choose a reading path

Find the question that matches your project.

The Blog connects practical product selection with integration and purchasing decisions.

Start here when…Consider these questionsRead next
You are defining the requirement.1. Write the claim as a measurable service · 2. Separate the three energy quantitiesUsable Battery Storage Energy: How to Define a DC-to-AC Acceptance Test
You are integrating a configuration.Distinguish waiting, sleeping and being isolated · Convert a small continuous demand into an energy budgetWhy Does a Storage Battery Lose Energy While the AC Loads Are Off?
You are preparing an RFQ or evaluation.Find out where each percentage comes from · Understand how small accounting errors accumulateWhy Do a Rack Battery and Inverter Show Different State of Charge?
A useful conversation starts with a specification

Tell us what your equipment needs.

Share the load, dimensions and intended use. Ask for a current model specification and a project review.

Discuss your project

Product comparison