LiTime Lithium Blogs

Learn what a truck auxiliary power unit (APU) is, how it works, its benefits, costs, and why lithium battery-powered APUs are ideal for long-haul trucks.

In the past 3 months, we've received 42 comments asking about connecting battery in parallel: How many batteries can I parallel? Does cable length matter? Why are my batteries unbalanced after parallel connection? Many users want to expand capacity by connecting batteries in parallel, but small mistakes lead to fast battery degradation, poor performance, or even safety hazards. Thinking you can just hook up batteries in parallel and call it a day? Bad idea. Parallel battery connection looks simple, but hidden risks include voltage imbalance, improper wiring, and over-paralleling. One wrong step shortens battery life or creates fire risks. This...

We've all been there: staring at a lithium battery, turning it over and over, completely confused about which side should face up and which should face down. One wrong move can lead to serious trouble. It can damage your equipment, shorten battery life, or even cause safety hazards like battery swelling, leakage, and short circuits. All of these mean unnecessary costs and risks you can easily avoid. If you've been installing lithium batteries by guessing, or you've installed them wrong several times without realizing why, you need to learn this little-known industry secret: Your LiTime lithium battery already has its...

A lot of people have been in this situation: everything seems fine, then suddenly the voltage drops, and the first thought is, “The battery is bad.” So they rush to replace or repair it, spend money, and still may not solve the real problem. In fact, a sudden voltage dropping issue is not always the battery’s fault. Today, let’s break down what is really going on, so you can troubleshoot it easily and avoid unnecessary costs. Here is the key takeaway first: in most cases, a sudden voltage drop has little to do with the battery itself. More often, it...

Wildfire season can bring sudden outages—and in some regions, utilities may also perform planned shutoffs to reduce wildfire risk (often called Public Safety Power Shutoffs, or PSPS).[1] A power outage battery backup can keep essential home loads running quietly without fuel, fumes, or refueling trips. If you’re building around a LiFePO4 battery, this guide covers sizing, runtime, and safety basics. Table of Contents Quick Answer What a Home Battery Backup Can Power How to Size a Power Outage Battery Backup Wildfire Season Checklist for Home Power Outages Safety Tips (Smoke, Heat, Evacuation-ready) FAQ References Quick Answer Size your power outage...

When upgrading RVs, boats, or off-grid systems, many users choose to connect multiple lithium batteries in parallel to get longer runtime and higher output current. But in real use, it’s very common to run into situations like this: “I’m using Bluetooth monitoring on two 24V 100Ah batteries. One battery always stays in Standby Full mode at 27.4V, while the other discharges down to 20% or even lower. The battery in Standby Full never wakes up.” On many forums (such as Forest River, DIY Solar, etc.), LiTime users have also reported that when multiple LiTime batteries are wired in parallel, only...