• Welcome to the DeeperBlue.com Forums, the largest online community dedicated to Freediving, Scuba Diving and Spearfishing. To gain full access to the DeeperBlue.com Forums you must register for a free account. As a registered member you will be able to:

    • Join over 44,280+ fellow diving enthusiasts from around the world on this forum
    • Participate in and browse from over 516,210+ posts.
    • Communicate privately with other divers from around the world.
    • Post your own photos or view from 7,441+ user submitted images.
    • All this and much more...

    You can gain access to all this absolutely free when you register for an account, so sign up today!

For Sale Store your dive lights’ Li-ion batteries at optimal voltage properly

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.

XTAR Dive Light

Active Member
Jan 20, 2021
If your dive lights are not used for long time, please take out the batteries out and store them properly. Also, don’t forget to maintain the Li-ion batteries every 2-3 months. According to the Li-ion batteries’ chemical features, the permanent capacity loss is greatest at elevated temperatures with the batteries voltage maintained at 4.2 V (fully charged). You couldn’t store them at fully charged 4.2V.

For maximizing the storage life, it's suggested to store the Li-ion batteries at around 40-60% charge. This range provides a balance between preserving capacity and minimizing self-discharge during storage. Besides, please also store them in a cool, dry place. Because the extreme temperature and high humidity can degrade batteries' performance and lifespan. Ideally store them between 20-25 degrees Celsius, and avoid exposing the batteries to direct sunlight.

For storing your 18650/21700 Li-ion batteries more easily, you can use some smart chargers. Such as xtar VC4SL, VC8 PLUS. There is STORE mode setting. Just put the Li-ion batteries on the slots, choose store mode, then the charger will charge or discharge the batteries to 3.7V automatically. It’s simple to operate, help to maximize the batteries’ lifespan and save energy easily.

XTAR chargers+dive lights.jpg
DeeperBlue.com - The Worlds Largest Community Dedicated To Freediving, Scuba Diving and Spearfishing


ISSN 1469-865X | Copyright © 1996 - 2024 deeperblue.net limited.

DeeperBlue.com is the World's Largest Community dedicated to Freediving, Scuba Diving, Ocean Advocacy and Diving Travel.

We've been dedicated to bringing you the freshest news, features and discussions from around the underwater world since 1996.