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Description
OPUS BT-C3100 Smart Smart Digital Intelligent 4-Slot Battery Charger, EU Plug, US Plug, UK Plug1. Four independent charging channels: With independent charging control chip, precise control of the charging situation of each charging slot, the working power of the charger is 12V 3A, and a dedicated DC switching power supply is used 2. There are four levels of charging current available for selection, 200 300 500 700 1000mA, among which, if there is only 1, 4 channels with batteries, the current levels are: 200 300 500 700 1000 1500 2000mA, the
1. Four independent charging channels: With independent charging control chip, precise control of the charging situation of each charging slot, the working power of the charger is 12V-3A, and a dedicated DC switching power supply is used
2. There are four levels of charging current available for selection, 200/300/500/700/1000mA, among which, if there is only 1, 4 channels with batteries, the current levels are: 200/300/500/700/1000 / 1500/2000mA, the discharge battery can be set to 200/300/500/700/1000mA
3. The discharging mode does not switch to charging, and the battery discharge capacity is displayed. In charging mode, the 4.21V charger is judged to be fully charged
4. LCD screen: Can display the real-time charge/discharge capacity, voltage, current, and time of the 4 channels of batteries
5. Four working modes: Charge, discharge, repair and capacity test and battery internal resistance test
6. Applicable battery type: Lithium battery, model: 10440, 14500, 16340, 18500, 18650, 26650, 26500; Ni-MH battery, model: AA, AAA, C, D
7. Working temperature: 0 to 40 degrees celsius
8. Note: The product does not contain batteries
Function button:
1. MODE operating mode selection button
2. DISPLAY display mode button
3. CURRENT current adjustment button
4. SLOT, can individually adjust the working mode of each channel
The specific operation method of the charger:
1. Long press MODE for 2 seconds to enter the working mode to select, and then press this key to have four working modes to choose from, namely charge, discharge, repair capacity test and battery internal resistance test
2. Press DISPLAY to display the charge current, battery voltage, battery power, and battery charge and discharge time respectively.
3. When power on, the charger defaults to the charging mode and the charging current is 500mA
4. When powering on, press CURRENT to adjust the current. When entering work, if you want to adjust the current again, you need to switch the working mode to press this key to be effective. The charge and discharge current can be adjusted.
5. Press SLOT to adjust the working mode of each channel individually
6. When the temperature of the battery exceeds 40 degrees when the battery is charged or the temperature of the PCB board exceeds 40 degrees, the fan will start to rotate.
7. Select the capacity test working mode, the current can be the same as charging
Specification:
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4.7 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Calling all Freida Fans!!!
Format: Kindle
4.5 stars!!!! Mrs. Freida McFadden Fans!!! This book was soooooo good!!! I started reading last night thinking I will read a few chapters before bed. Well, it is 2am 😊 so, I couldn’t put it down. All the characters are despicable…but it a good way. I had this one figured out; I did, and BAM! No I didn’t…then, twist after twist after oh s*** twist!!! Poor Ezra…sweet little Teddy….the rest, all despicable, but like I said; in such a wonderfully twisty way!!!
Naomi husband decides out of nowhere he wants a divorce. She later finds out there “is” another woman; Veronica. Their son Teddy gets shuffled back and forth from Jeremy's house to Naomi’s apartment, and……
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Addictive as almond M&M's
Format: Paperback
I once read a book that blew the whistle on the abuses in the system that produces young elite figure skaters and gymnasts. One mother said of another mother that she was very likeable, but she'd cut your throat behind your back. That describes a lot of Freida McFadden's heroines (and their besties) to a t.
At least one of the following always occurs in these novels.
1. If someone says, "Eh, I'm sure it's nothing," it's not. If someone believes their husband is too busy working to have an affair, he isn't. If someone suspects a knife is missing from the block, it is.
2. If a child or teen bitterly complains of being a victim of peer conflict, there's a good chance he/she is the instigator. They may even have committed or assisted in a murder in the past.
3. At some point, you will be told point blank that the character you have just spent a good chunk of the book with is the polar opposite. And even if you're familiar with the books, it may come as at least a partial surprise since this doesn't occur in most novels.
4. Everyone in the book has a secret, even if it's just hair dye.
5. There's also what I call the "Cold Case" rule: Don't argue near stairs. Ever. But I digress.
At first, happily married to a great guy Naomi Roth doesn't really protest when her husband Jeremy, after having changed the locks, insists that she go and stay at the apartment he bought for his now-deceased parents. She believes, despite a few stray doubts, that he is telling the truth when he says that it's just renovations and that it will be better this way - and he's even thoughtfully packed for her. However, soon after that, Naomi is told in no uncertain terms that Jeremy wants a divorce, which makes her a pariah with her fellow mothers, except one. Is her husband having an affair, and if so, what secrets does his mistress have? And who the heck committed the murder in the preface (there's almost one in every book, so it isn't much of a spoiler)?
As always, the author makes writing fiction look effortless, which if you've actually sat down to write some, know it usually isn't. Another addictive read.
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Reviewed in the United States on May 27, 2026
★★★★★ 5
a life in letters
Format: Kindle
What a moving story. I thought I would be bored reading someone’s correspondence, I was not. This is a well written, interesting and moving book. A life in letters. Loved it.
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Reviewed in the United States on May 28, 2026
★★★★★ 4
Heartwarming & real!
Format: Kindle
Life can be so difficult ...this story is about learning that we all make mistakes
along the way, doing the best we can. Its about learning to forgive ourselves. Beautiful.
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Reviewed in the United States on May 24, 2026
★★★★★ 5
Heartbreaking and beautiful
Format: Kindle
This book reads like living. I was able to be Sybil, not just observe her. I found the experience of reading her story authentic and cathartic in a way. At the middle of my life it provoked a sense that’s there can be goodness and purpose in aging.
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Reviewed in the United States on May 25, 2026