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HohmTech School 4A 4-Bay Charger

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    Hohm Tech SCHOOL 4A Charger, featuring a 3-tier amp BLD (battery length detection) System and a variable input voltage IPR (Input Power Regulator). There is no need for a screen on this charger. It is 100% autonomous. It is equipped with our BLD System, which automates the step-up/down output so both small and larger cells charge at the proper rate (0.5A, 1A, 2A per channel with 4A total distribution). Even li-ion batteries with a PCB/PCM are easily balanced to the correct voltage. This ensures today’s small li-ion batteries' chemistry integrity is not compromised, allowing them to get the cycle life they deserve.



    • BLD System: Battery Length Detection automates charge amplification & reduction on li-ion cells.
    • Low Voltage Activation: Allows overly discharged li-ion batteries down to 1.95V to be charged via a 200mA stimulate charge.
    • Input-Power Autonomous Regulator integration (no more stressing USB power adapters or ports)
    • Compatible with ALL li-ion cells from as short as 30mm to as long as 73mm
    • LED indicator that reports [green/red] colour and blink variation for quick/easy readout
    • PCB/PCM compatible so even protected cells aren’t left out in the cold
    • Protection: over charge; short-circuit; wrong battery type detection; reverse polarity
    Return Policy

    All electronics, e-cigarettes and herbal vaporizers have a 14 day manufacturer defect warranty. The 14 days will start the day your package is delivered. To return a product, you must have the box and all original contents included, as well as your receipt. You must send us a photo or video of the defect, as best you can, to our e-mail (, or in store.

    View our full Refund Policy and Shipping



    We offer delivery 24/7 , anywhere in Calgary. Place your order on the checkout screen and click delivery. If your order is over $50 it is free! If not, there is a $10 delivery fee added to your order. I.D must be present upon delivery for age verification.


    Place your order and on the check out screen select shipping. If your order is over $100 it is free! If it’s is not $100 there is a $10 shipping charge that will be added to your orders total. I.D will be required upon pick up for age verification.

    HohmTech School 4A 4-Bay Charger