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OPUS

BT-C2400 Battery Charger Analyzer Tester for AA AAA NiMH NiCd Rechargeable Batteries

  • Based on 701 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Jun 23
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Features

  • Battery charger for AA AAA NiMH NiCd rechargeable batteries. Easy to setup and simple to use.
  • Features four indepentant channels like having four chargers in one. Set up channels individually or all at once.
  • Back lighted LCD display Digitally displays capacity, voltage, time elapsed and current for each battery channel.
  • Charge, Discharge, Refresh , Test. Even test internal resistance. This charger does it all with ease.
  • Highest battery capacity limit of 20,000 mAh. Charge, Discharge, Refresh, Test any NiMH or NiCd battery.

Description

Features: Four independent channels can be programmed individually or all together. Charge, condition and analyze one to four AA or AAA NiMH or NiCd rechargeable batteries. Back lighted LCD Digitally displays capacity, voltage, time elapsed and current. Adjustable charging rate from 200 to 1400 mA. (1000 mA max 4 channels) Five modes of operation for each channel: Charge: Discharge: Discharge Refresh: Charge Test: Quick Test: Negative delta V (-dV) full charge detection. 16 bit Delta-Sigma Analog to Digital Converter for best accuracy. Four independent sensors to manage battery temperature. Second Generation optimized charging circuits and firmware V2.2. 12V powered, can be powered by included car adapter. Rugged construction with extensive ventilation for batteries. Specifications: Operating voltage 12Vdc. 10V minimum, 16V maximum. Adapter Power Supply input: 100 - 240 VAC, 50 -60 Hz. Adapter Power Supply output: 12Vdc 1.0A. Charge current: maximum 1400 mA, 200 mA increments. (1000 mA max all 4 channels) Default charge current 400 mA. Discharge current range 100 to 500 mA. Maximum Charging Capacity 20,000 mAh Operating Temperature: 0 to 40 deg C Includes: BT-C2400 Charger Wall Adapter Power Supply Operating Manual

Brand: OPUS


Item Weight: 0.5 Pounds


Output Voltage: 12 Volts (DC)


Input Voltage: 240 Volts


Current Rating: 1400 Milliamps


Product Dimensions: 6 x 4 x 1 inches


Item Weight: 8 ounces


Item model number: BT-C2400-US


Is Discontinued By Manufacturer: No


Date First Available: August 22, 2014


Manufacturer: Opus


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 23

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Top Amazon Reviews

    • 4 indepent charge bays, handles most battery types, "smart" charging, what's NOT to like.
I use rechargeable batteries often with photography, and when I do a shoot (paid or not) I need to count on my power being rock solid. Batteries have a finite lifespan, and their performance degrades over time.NiCads develop memory, and using an "unmatched" or poor performing battery with a group of good batteries not only damages your good batteries, it reduces your overall performance to that of the weakest battery in the group. I own several of these units, and not only do they let me group my batteries by performance and capacity, they charge my batteries in the best way to keep them lasting a long time. I could write a book on proper charging techniques, but I'll let you do that research elsewhere. The quick hint - use a lower charge current if you want your batteries to last a long time, and don't run a full discharge/test on your batteries all the time because your are effectively consuming recharge cycles from your battery when you do so. Regardless of your charger choice - be sure to use a "smart" charger if you plan to keep your batteries around for a while. Here's my review" Pros: 1. 4 independent charge bays. This means that each battery is charged independently according to its characteristics. Charging 2 batteries together can overcharge a good battery while an older battery struggles to get the correct voltage and current to charge it. 2. Adjustable current levels. If you need a battery quickly, you can bump the current, if you have time to charge slower, you can increase your battery life with a reduced charge current. 3. Ability to measure true mAh of each battery. This is great when you want to match your batteries. I match mine by physical age and measured mAh. I have batteries that still perform well and should have been retired years ago. 4. NiMH or NiCd? - no problem. This charger does them all. Older NiCd's can in many cases be "refreshed" by repeated charge/discharge cycles. I've done it with this charger. 5. Cost - I bought my first unit at $50, as I write this $30 is the going rate. Cons: 1. The manual is pretty poor, but still gets the point across. 2. Calculated mAh rates are not consistent between units. I have 2 units, and whenever I buy a new set of batteries I run a full charge/discharge test to insure that none of my batteries are back, and to match groups of batteries together. Between each unit, I consistently see a reported difference of aprox 15-30 mAh. between units. Is this is big deal? - NO, just remember that your measurements aren't exact, but they are WAY better than using a "non" smart charger. 3. making selections and reading total current is sometimes quick. When you plug in a battery, or several batteries, you can select what option to perform and also at what current. At some point in time, this option gets locked in to prevent you from changing the "smart charge" cycle. Most of the time, I'm quick enough choosing what I want, occasionally I need to reset a battery to allow me to change a setting. In a nutshell, I absolutely recommend these units for your charging needs. Thanks for reading. I hope this helps ... show more
Reviewed in the United States on April 7, 2016 by Bob 2012
    • Opus BT-C2400 Smart Battery Charger
Review Image by Anany Anany
Please note that this review was written by me, an actual person. If it seems a bit "too clean", it is because it has been run through Chat GPT simply for improving the style and grammar. After researching smart battery chargers, I initially leaned toward the much hyped Powerex (Maha) MH-C9000Pro. However, after comparing features and price, I ultimately chose the Opus BT-C2400, and I’m glad I did. It performs well and costs less than the Maha. What I Like * Comprehensive Functions: It offers all the essential features of a smart charger/analyzer—Charge, Discharge, Test Internal Resistance, and Discharge/Refresh. * Detailed Display: Shows voltage, capacity (mAh), charging current (mA), and cycle duration. * Thoughtful Design: The battery slots are well-spaced, which helps prevent overheating. * Built-in Safety: Includes a temperature sensor to avoid overheating during operation. * Simultaneous Slot Monitoring: You can view data for all four slots at once. In contrast, the Maha MH-C9000Pro cycles through each slot and stat, which would drive me crazy. * Great Value: Offers excellent functionality at a lower price point. What Could Be Better * Display Behavior: Once a battery is fully charged, the screen only shows "Full" in most modes. I wish it would alternate between "Full" and the selected stat (e.g., mAh, voltage, duration), as it does briefly in Charge/Test mode. You can press "Display" to view other stats, but they flash too quickly to capture or read easily. * LCD Quality: The screen is functional but a bit dated. It has limited viewing angles and reminds me of old digital watches where you had to tilt your wrist just right to read the display. * Inconsistent Resistance Readings: The internal resistance feature is a nice addition, but the readings vary widely and should be taken as rough estimates. Still, it’s a feature the Maha lacks entirely. * Lack of Charge/Discharge Rate Guidance: The manual doesn’t specify recommended charge or discharge rates for AA/AAA batteries during refresh cycles. I had to consult the Maha manual for guidance. Charge/Discharge Rates According to my research, it is recommended that charge mA rates should be no less than 30% of the battery's rated mAh capacity. For example, a 900mAh AAA battery should be charged at no less than 270mA (900 x 0.3 = 270). The reason is that, although low charging rate is generally good for the battery, it may prevent the charger from cutting off when charging is done, therefore potentially overcharging, overheating, and damaging the battery. Final Thoughts The Opus BT-C2400 is a solid smart charger with a robust feature set. It delivers excellent value and functionality. If you're looking for a capable charger without breaking the bank, this one is worth considering. ... show more
Reviewed in the United States on June 14, 2024 by Anany Anany

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