As energy demands increase in industrial, e-mobility, and high-drain consumer electronics, battery form factors must evolve. The Samsung 40T series, in particular, has emerged as a top-tier solution for companies looking to integrate reliable, high-discharge lithium-ion cells into their systems.
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What Makes the Samsung Battery Superior?
Companies in sectors such as energy storage, electric transport, and power tools benefit from battery improvement through:
Higher Capacity: The Samsung battery mAh (depending on model variation) offers extended run-time, minimizing downtime and maintenance frequency.
High Discharge Rate: The Samsung 40T model supports a continuous discharge current of 35A, making it ideal for high-drain applications like e-bikes, vape mods, power tools, and UPS systems.
Thermal Management: Samsung’s robust chemical composition and internal resistance control help reduce overheating during peak performance cycles.
Long Cycle Life: Built for long-term industrial deployment with consistent output across hundreds of charge/discharge cycles.
Key Specifications of Samsung 40T Battery
Commercial Use Cases for Samsung Batteries
1. Energy Storage Systems (ESS):
For developers of modular lithium battery racks, using Samsung cells allows for compact, scalable BESS units that can handle peak grid loads or serve as backup for solar installations.
2. Electric Vehicles & E-Mobility:
The high drain of Samsung 40T battery is a good choice for electric scooters, e-bikes, and motorcycles, where space is limited but demand is high.
3. Professional Power Tools:
Manufacturers of cordless drills, saws, and heavy-duty tools rely on Samsung 40T battery packs to deliver sustained power and fast-charging reliability.
4. Vaping & High-Wattage Devices:
With vaping devices demanding fast ramp-up and stable power delivery, battery Samsung models like the 40T are often cited as industry-leading options.
Why B2B Buyers Trust Samsung SDI
Reliable Supply Chain: Global distribution and consistent availability
Certifications: UN38.3, MSDS, RoHS, IEC, UL
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Customization: Support for OEM branding, custom wraps, bulk packaging
Traceability: Samsung ensures batch-level traceability, an essential factor for industrial QA and regulatory compliance
Conclusion: Choose Samsung for Energy Confidence
Whether you are building a fleet of electric vehicles, designing smart grid battery modules, or powering next-generation tools, the Samsung 40T delivers unparalleled performance and reliability. As a globally trusted name in battery technology, Samsung battery options are not just high-performing—they are a strategic investment in quality, safety, and long-term ROI.
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We offer tailored B2B services for Samsung battery supply. Contact us for datasheets, MOQ details, and integration support.
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Hi folks...
There are several advantages that this larger case provides.
1. The cells pack together a bit better than 's. This means more total capacity in the same amount of space.
2. The greater cell capacity was significant. I've been using 's and LIPO for a good while and really wanted a cell that would have lots of capacity per cell that wasn't LIPO.
To date, I have been testing on my SkyRC D100 charger and a 6S battery holder I made.
Cell specs say full charge at 4.2 volts and discharged at 2.5 volts. Everything I've ever known about LION before says fully charged is 4.1 volts and discharged at 2.75 volts. Did something change that I'm not aware of?
I tested the cells soon after their arrival and they were all at 3.58 volts. I then charged them to full (4.1 volts) and recorded their capacities. All cells came in at around mah. Some had a bit more capacity.
My SkyRC D100 charger doesn't go lower than 2.9 volts and these cells are rated down to 2.5 volts. I'm not really testing them to full capacity when I do a discharge test. My results so far are a bit skewed as a result since I'm not going down to 2.5 volts or up to 4.2 volts. So far I see mah down to 2.9 volts. They are rated at mah so that means that between 2.5 volts and 2.9 volts and above 4.1 volts is another mah that so far I am not measuring. I'm skeptical, but we will see. My next round of testing will be at 4.2 volts.
My experience with any battery pack is that the closer to discharged you get the more sag you experience. My expectation is that these cells at below 2.9 volts are going to sag a good bit. My D100 discharges at 400mA which is not a load test, just a capacity test. I have 35 halogen bulbs I've used for load testing many times. Each bulb is 12v, 55w, 4.6 amps. 2 of these bulbs in series will be pretty close to a 1C load on the 6S pack. I'll put a watt meter in between the pack and the load to measure Ah and a cell monitor on the balance lead to measure individual cells.
I have checked 12-15 cells to determine their Ir. Most are in the 35-38 milli ohm range and a few as high as 43 milli ohms. This seems somewhat disappointing, but everything I've read elsewhere shows this is a typical Ir for this cell. However, it may be that these cells don't increase their Ir like most cells do as they age. In that case 35-38 milli ohms isn't that bad. Very rarely do people scrutinize their packs individual cells after they are 6 months old or older. It is common for cells to creep up to 40 milli ohms or higher in that time frame.
Future LION development is coming. Supposedly mah capacity in the is coming soon. Maybe wait until we see capacities over mah before buying? I ran into a deal on what are supposedly Samsung cells rewrapped to be generic and are rated at mah. I didn't buy them. If Samsung won't at least put their name on the wrapper, why should I trust them?
Hillhater said:
ElectricGod said:
.
1. The cells pack together a bit better than 's. This means more total capacity in the same amount of space.
. They are rated at mah so that means that between 2.5 volts and 2.9 volts and above 4.1 volts is another mah that so far I am not measuring. I'm skeptical, but we will see. My next round of testing will be at 4.2 volts.
The bigger diameter makes no difference to the % packing for any given area.
Its highly unlikely a cell will have an extra 33% capacity between 2.5-2.9 and 4.1-4.2 volts.
I suggest you review your test proceedure and compare it to Samsungs specifications and test methods.
Most cells are capacity tested at a discharge rate of 0.2C
For that "test", my RC charger was set to charge to 4.2 volts and to discharge down to 2.9 volts. I then charged to 4.2 volts and used it's discharge function to run those cells down. I tested 36 cells in sets of 6 cells. It has a windows app so you can watch the actual charging and discharging graphs of any particular set of cells. All I had to do is let the RC charger run and then record it's end results. My results are as I have stated straight from the RC charger. So no "mis-testing" was done. The results are what they are. I was discharging at 400 ma which is a little lower than .2C or .14C
The only explanation that makes sense and accounts for the additional capacity is in this little extra bit of voltage between 2.5-2.9 and 4.1-4.2 volts. Otherwise, if I discharge from 4.1 volts down to 3 volts, I see my previous capacity results or mah from the exact same charger and discharge set up.