Opus BT-C3400 v2.2 Charger/Analyzer, Used Opus
Opus BT-C3400 v2.2 Charger/Analyzer, Used Opus
Opus BT-C3400 v2.2 Charger/Analyzer, Used Opus
Opus BT-C3400 v2.2 Charger/Analyzer, Used Opus
Opus BT-C3400 v2.2 Charger/Analyzer, Used Opus

Opus BT-C3100 v2.2 Charger/Analyzer, Used

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Regular price $59.99 Sale price$9.99
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  • In stock, ready to ship
  • Inventory on the way

We've had these Opus chargers for a couple years now. They're great units and still in working condition, but they've been run quite a bit so they're scratched and dinged. These were modified with better cooling fans, and some have the bottom cut out for additional cooling fans since they were run so much.

Each bay can be programmed indepently, and the outer two can be set for 2 amps max discharge (max discharge 1a when other bays are in use).

Note that one unit has a bad bay. We'll save that one to sell last and sell it for $5.

These all come with a power supply.

Did you know that the Opus BT-C3100 v2.2 is identical to the C3400 and capable of charging and analyzing 4.35v cells such as the Samsung ICR18650-28A, -30A/B, LG ICR18650D1, Sanyo UR18650ZT/ZTA and others? Wondering what's the capacity difference charging these 4.35 volt cells to 4.20 volts? We have the answer right here!


For nearly all Li-ion NiMH and NiCd consumer cylindrical cells.

NiMH/NiCd sizes: AAAA, AAA, AA, A, C and SubC.
Li-ion sizes: 10440, 14500, 14650, RCR123A (17340), 17500, 17670, 18350, 18500, 18650, 19670 (protected 18650), 25500, 26500, 26650.

For Li-ion (Lithium ion) NiMH or NiCd rechargeable batteries.
Four indepentent channels can be programmed individually or all together.
Charge, discharge, condition or analyze one to four Li-ion, NiMH or NiCd rechargeable batteries.
Back lighted LCD Digitally displays capacity, voltage, time elapsed and current.
Adjustable charging rate from 200 to 2000 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 for NiMH/NiCd. CC/CV for Li-ion rechargeable cells.

Adapter Power Supply input: 100 - 240 VAC, 50 -60 Hz.
Adatper Power Supply output: 12Vdc 3.0A.
Charge current: maximum 2000 mA. (1000 mA max all 4 channels)
Maximum discharge current 1000 mA (700 mA for NiMH/NiCd)
Maximum Charging Capacity 20,000 mAh
Operating Temperature: 0 to 40 deg C


About Us

Higher Wire Inc. gives new life to old lithium batteries and is revolutionizing the way the world views sustainable energy. We're solving environmental and supply-chain concerns by creating innovative technologies that make energy storage and generation more efficient and accessible, such as our patent-pending process to reintegrate batteries into Second Life applications. We safely disassemble used lithium battery packs and evaluate the individual cells within. Those which meet our strict grading criteria are repurposed into other forms of energy storage, which requires less energy and generates no chemical waste as compared to end-of-life recycling. We provide comprehensive solutions for municipalities, e-waste processing centers and battery end users to minimize their burden for processing, as well as design, engineering, installation and maintenance when deploying our Second Life systems.

We ship the majority of our orders by the next business day. Lithium batteries may take up to two business days to process to accommodate inspection and logging into our system.

Our shipping rates are based on the weight of all ordered products plus estimated weight of packaging. We make every effort to forecast an accurate shipping cost, but cannot be 100% certain in all cases. Please contact us at sales@higherwireenergy.com with any questions prior to purchase.

We pack and label all lithium battery shipments in accordance with Federal Regulation 49CFR173.185, as well as USPS Publication 52 Hazard Class 9 or UPS/Fedex guidelines. Unless otherwise stated, lithium batteries are not eligible for free shipping.

We try to pack all items in an order in a single box, however we may on occasion need to ship items separately. Special shipping does not apply to lithium ion batteries, and orders that include batteries may not qualify for free or expedited shipping.

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