The Curator's Notes: Hohm Tech
- 06 Feb, 2019
Hohm Tech took the vaping world by storm with their innovative batteries and Hohm Base charger. They’ve continued to innovate with new batteries, chargers and safety improvements. Hohm Tech started out by partnering with LG and Indonesia Chemistry to take tried and proven designs like the LG HE2 and improve them in every way. Hohm Tech tweaked the battery chemistry and enhanced safety features to provide the best batteries we’ve come across at Coval.
What makes Hohm Tech batteries unique?
Hohm Tech has taken tried and proven battery designs such as the LG HE2 and tweaked the battery chemistry and design to enhance their safety and performance. Let's take a look at the changes made for the Sherlock Hohm:
- EPTC (Enhanced Positive Thermal Coefficient) equipped: Reduction in Thermal Runaway potential
- Updated Poly Seal from inception: Enhances the security of the seal & ensures it excels in various applications and environments
- Cathode tag utilizes Ultra-High Purity Aluminum for internal resistance supression
- New Mn bonding process that achieves greater purity: Cycle Life is increased to 69% nominal average of original capacity
- Other proprietary changes for safety and longevity
As you can see, they essentially take a proven design and improve every aspect of it - from chemistry levels to safer seals and caps. Instead of just repackaging a cell, they chose the route of modifying a proven design to make the best possible battery for consumers.
The 18650 Line
Hohm Work 18650: Designed with mechs and high wattage output in mind, the Hohm Work is a powerhouse with a respectable capacity of 2531 mAh. Continuous discharge rate of 21.5A and a pulse/peak rating of 40.6A. Hohm Tech claims this battery can be charged up to 4.75A.
Hohm Stretch 18650: The newest addition to their lineup, the Hohm Stretch positions itself in-between the Hohm Work and Hohm Life in many ways. A very respectable 2856 mAh capacity with 21.8A continuous discharge rate and a peak/pulse rating of 31.6A.
Hohm Life 18650: The highest capacity of the Hohm Tech 18650 lineup and the most popular battery at Coval Vapes. The Hohm Life is rated at 3077 mAh with a continuous discharge rate of 20.7A and peak/pulse rating of 36.3A. Hohm Tech claims the Hohm Life can be charged up to 4.25A.
Note: Hohm Tech has a couple varieties of each battery. The information included in this post cover the varieties we currently carry of their batteries.
So, which 18650 is right for me?
Choosing the correct battery is critical and we encourage users to email us or ask in-store for help if they are unsure. Battery safety is always our priority. We’ve found the following recommendations are appropriate for most vapers:
Please note – these guidelines are general and may not cover your exact use case. Never push your batteries beyond their limits and always use a quality charger.
Sherlock Hohm 20700: The Sherlock is the best battery we’ve come across for 20700 and 21700 devices. 2782mAh capacity, continuous discharge rate of 28.4A and peak/pulse of 47.8A. Hohm Tech claims the Sherlock Hohm can be charged up to 3.15A. This is my personal battery of choice in the Aspire Dynamo.
Hohm Grown 26650: The single best 26650 we have come across and my battery of choice for the Geek Vape Aegis. Boasting a massive 4307mAh capacity, continuous discharge rate of 32.3A and peak/pulse rating of 51.6A. The Hohm Grown is simply a powerhouse and a game-changer for 26650 mods.
The Hohm School is the newest charger from Hohm Tech powered by micro USB. Hohm School is focused on reliability and ease of use. There are no adjustments to make – just insert your batteries and it will begin charging. With an appropriate USB adapter, the Hohm School can output up to 2A. Hohm Tech states the Hohm School output is:
Hohm Tech included a variety of protections and safety features on the Hohm School including:
Overcharge protection, short-circuit protection, Li-Ion detection, reverse polarity protection and LED indicators with warning notice. 0v activation is an awesome feature that Hohm Tech included on the Hohm School and we’ll go into more detail on this in a little bit.
|Power users and those looking for the most advanced charger will appreciate the thought put into the Hohm Base. Four independent bays allow you to charge multiple battery chemistries at once. The back-lit display clearly displays a number of important statistics we’ll elaborate on in a little bit. The Hohm Base can charge the vast majority of li-ion cells on the market ranging from 10440 to 18650 to 26650 and more as well as NiCd and NiMh batteries. The Battery Doctor feature discharges your battery to 0% and then charges them back up to full. It will display the complete mAh and amp readout so you have a better picture of your battery’s health. The 0v wake activation, also featured on the Hohm School, is also present here.|
What is 0v wake activation and why do I want it?
Li-ion batteries contain a number of protection and safety features. One of these will “turn the battery off” when it’s over-discharged (example: using a mech when the battery gets too low and it draws too much power). Typically, this safety feature kicks in between 2.3 and 2.9v for the cells we use for vaping. The Hohm School and Hohm Base can “wake up” these cells and charge them properly to bring them “back to life”. Before I switched to a Hohm Base, I always assumed my cells were dead when I pushed them too hard in my mechs. I’ve been able to successfully bring a number of cells “back to life” with this feature. Please note this feature does not guarantee your battery can be saved and does take some time to complete.
I’d like to finish this out by re-emphasizing battery safety. Never leave your batteries un-attended, especially when charging. Never leave your batteries loose – always keep them in a case when not in use. Be aware of your battery’s limits and do not exceed them. Always use a quality charger, such as the Hohm School or Hohm Base. 18650 batteries generally perform best between 45F and 105F - do not expose batteries to extreme cold or hot temperatures.