This is a nice little charger I picked up a few weeks back. Charges most types of cylinder batteries including lithium 18650's. Opus BT c3100 v2.2 4 slot battery charger / capacity tester operation demo
Battery Chargers Top Picks: Updated Opus BT - C3100 V2.2 Universal Battery Charger - Amazon.com Modifying OPUS BT-C3400 Charger to accept 4.35V Li-Ion cells
Best Battery Charger Opus BT-C3100 v2.2 First look review of the Opus BT-C100 Battery Charger supplied by GearBest. Link to BT-C100 Charger on gearbest.com:
How Do You Use A Smart Battery Charger - OPUS BT-C3400 Universal Battery Charger Analyzer Tester In this video I do my best Hi Guys, this is my unboxing and review on the Opus BT C3100 V2.2 intelligent battery charger. Whats in the box??? - Opus BT Opus bt c3100
A review I posted on Amazon. Opus BT - C3100 V2.2 Digital Intelligent 4 Slots LCD Battery Charger Compatible with Li-ion NiCd JWINK Review of the Opus BT-C2400 Battery Charger For a more detailed review of this product, Visit Amazon.com for my written parts to buy are listed below! :) Hello! I'm Andy and this is my video log of designing and building the cheapest most modular and
Amazon Affiliate Link: Summary: 4 slot battery charger/discharger/capacity tester. It can charge at up to 2 A high-performance, multi-functional 4-bay digital battery charger, designed for charging, analyzing, and maintaining lithium-ion, NiMH, and NiCd batteries.
It's been 7 years since I had purchased this OPUS BT-C3400 Li-Ion/NiMh battery charger on Amazon. Over those 7 years, it has Opus BT-C3100 Charger/Battery Tester – Liion Wholesale Batteries Consistency Testing the Opus BT-3100 vs Liitokala Lii-500 18650 Battery Chargers
Here's an overview of the fan modification I have done to my OPUS BT-C3400 battery charger that I use for charging my 18650 GearBest Opus BT-C100 Battery Charger First Look Here you can see my problem with one of the two chargers i have bought.
Overall this a good upgrade on my VC4 charger, nice features for discharging cells but a puzzling quick test feature. Obviously this In this video, I uncover some hidden functionality of this charger. Inside the charger is a selection switch that allows the user to How Do You Use A Smart Battery Charger - OPUS BT-C3400 Universal Battery Charger Analyzer Tester
In this video I show you, step by step, how to repair your Opus BT-C3100 charger if it has a broken spring, or if the cell holder Opus BT C3100 V2.2 - An intelligent battery charger (Unboxing and Review) Intelligent Battery Charger? - Opus BT - C3100 (Li-ion/NiMh/LiFePO4) IN: (affiliate links) US:
I purchased this charger back in 2016 as I started harvesting 18650 cells from laptop batteries to power my devices. Here's how The Best Rechargeable Battery Chargers? · SKYRC MC3000 is currently the #1 best and most advanced battery charger on the planet · Opus BT C3100 is the second-best OPUS BT-C3400 Fan Mod (Overview)
OPUS BT-C3100 Charger Review and Tear-down 15. Gearbest Opus BT C3100 V2 2 Smart Battery Charger Opus Intelligent Battery Charger Review
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Power2Spare has large, brushless fans for keeping the Opus BT-C3100s cool while you are processing cells. They cut the cycle This is my favorite charger for 18650 Li-ion batteries and NiMH batteries. Check the current price here:
product link: Description 1.The charging current can be selected for 200mA, 300mA, 500mA, 700mA and Opus BT-C3100 Opus BT-C100 Battery Charger Demo
Hi all Got my new OP4 last weekend with 2x105Ah lithium batteries and the standard imperium 20A ac-dc charger. (Also an enerdrive DCDC which Opus BT-C3400 / Opus BT-C3100 CLONE Charger / Tester Review - Tesla Powerwall / DIY Powerwall 18650
Simple DIY Wall Mounted Battery Charger Opus & Liitokala This is the most full featured charger we sell. It can do all kinds of stuff in addition to just charging batteries, including testing and cycling them.
There's a common myth circulating various DIY groups and forums. Does the Opus BT-C3100 actually test 10% higher than the Opus BT-C3100 Upgrade: Breathing New Life into an Old Charger
JWINK Review of the Opus BT-C700 V2.1 Battery Charger For a more detailed review of this product, Visit Amazon.com for my Opus BT-C3100 V2.2 4Slots LCD Display Battery Charger Banggood.com review 2 Year Update on my OPUS BT-C3400 Li-Ion Charger
Opus BT-C3400 V2 2 Battery Charger Quick Look Overview of the BT C3400 Li-Ion NiMH NiCd Battery Charger Thoughts on OPUS BT-C3100 charger? Specially it's ability to read batteries internal resistance. Thanks!
Brand: Enedo · Natural convection cooled – fan free · Standard output voltages: 24, 48, 60, 110, 125 and 220 VDC · Max 6 kW output power, 4.5 kW for 24 VDC Battery capacity check (Part 1)
The Opus BT-C100 single bay charger can handle 3 different battery types and multiple battery sizes. I recently saw a video testing various NiMh rechargeable batteries using this charger, the Opus BT-C3400 battery charger. It's only
Universal charging and testing station for 18650 batteries. Like! Comment! Subscribe! My instagram Little noise for Used OPUS BT3100 battery charger Test working Battery charger | liitokala lii m4s | 18650 | Electronics | Handyman Tips #shorts
This is a Review of the Opus Intelligent Battery Charger This is a Multi function Battery Charger which does a Variety of Things. Opus BT - C3100 V2.2 Battery Charger
OPUS HE 7U Modular & Industrial Battery Charger 6kW » Helios Battery Charger Review - Opus BT-C3400 Review and How to Use Its Features
OPUS HE 12U Modular Battery Charger 10kW » Helios Power Our viewers successfully modified their Mega Two charger! We're tearing apart a Pecron cable next to explore more battery Opus BT-C3100 v2.2 Charging Voltage Hack
EBL AAA batteries and AA batteries + EBL USB charger vs. Opus BT-C3100 Batteries (RACAHOO) purchased from the store Shop1170666Store on the website aliexpress.com
Opus BT-C3100 V2.0 Intelligent Battery Charger Review and Teardown This is an intelligent battery charger for charging Li-ion NiMH NiCd rechargeable batteries. It also checks your batteries for actual
Testing The Capacity of Various NiMh Rechargeable batteries using an Opus BT-C3400 Battery Charger This is my review and How-to on the Opus BT-C3400 Intelligent Battery Charger. :See it here also. Used OPUS BT-C3100 battery charger(Half Screen does not work)
How to fix an Opus BT-C3100 18650 Battery Charger with broken springs, step by step, the easy way 18650 Opus Charger Overheating Fan Fix
How to charge NiMh batteries fast with opus BT-C2400 Opus BT-C3100 - Have I made the wrong choice? - Chargers
The Best Rechargeable Battery Charger in 2025 (For Eneloops Discover the efficient and reliable Opus BT-C3100 v2.2 4 Bay Digital Battery Charger for all your charging needs. Invest in quality equipment to ensure
The Opus BT-C3100 is a solid charger/discharger, but it has its flaws—so I set out to improve it! In this video, I upgrade the internal Thoughts on OPUS BT-C3100 charger? Specially it's ability to read Opus BT - C3100 (V2.2) Smart Battery Charger: Review & Test
⚡️DIY Powerwall Project - ep4 - Opus BT-C3100 Fan Mod & Test (2019) In this video I pick out some of the better choices for various types of battery chargers. From simple Li-ion models, Ni-MH including
Buy Used OPUS-BT3100 battery charger ( Damaged shell )Test good working In this review, I found the Ambient Weather BC-3000 a Opus 3100 / Opus 3400 clone and we test it. We first start off on the outside
Opus BT-C3100 Li-ion NiCd NiMh Smart Intelligent Battery Charger with EU Adapter-GearBest.com As I have recently started using 18650 Li-Ion batteries, I needed a good charger to safely charge unprotected cells harvested from
Testing this beast for 18650 capacity check. Unboxing OPUS BT-C3100 V2.2 Battery Charger for Li-ion, NiMH, & NiCd Rechargeable Batteries BT-C3400
19” 12U Rack delivers maximum 10 kW output power at 48V, 60V, 110V, 125V and 220 VDC and 7.5 kW at 24 VDC output. 19” 12U Racks include 5 rectifier modules. The other thing is that it says 'NULL' when I put in some old AA batteries that haven't been charged for a while, and I cannot get it to do
Opus BT-C700 V2.1 Battery Charger Is 2.5 days battery life typical for an Opus 4?
Lets have a look inside this OPUS charger. DIY Opus Charger: Battery Hack for Mega One & Two!
At the end of the video I was able to do a few more charge/discharge cycles so that's why I say I got 100mAh more from the AA Opus BT-C3100 V2.2 4 Slot Battery Charger
Opus BT-C3100 charger failure, aliexpress 2017 Opus BT-C3100 V2.2 4Slots LCD Display Battery Charger-- Wholesale Chargers --
Amazon USA - UK - An in depth look at the intelligent charger and tester from This started out as a quick video about how to replace a fanturned into not such a quick video, but still mostly about a fan! Skip to
7 Year Update on OPUS BT C3400 Li Ion Battery Charger Universal Battery Charger, Speedy LCD Display, Smart Battery Charger for Rechargeable Batteries, Ni-MH, Ni-Cd, AA, AAA,3.7V, Li-ion, 18650, 26650, 17670, 14500 Opus BT-C3100 v2.2 4 Bay Digital Battery Charger - 18650 Battery
Review: Opus BT-C3100 18650 Cell Charger/Capacity Tester Intelligent Battery Charger? - Opus BT - C3100 (Li-ion/NiMh/LiFePO4) Opus BT-C700 NiCd NiMh LCD Digital Intelligent 4 Slots Battery Charger
Bought here: Started working again, Got another one now.