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Description
Geekworm T208 18650 UPS ( Max 5.1V 8A Output ) and Power Management Expansion Board for NVIDIA Jetson NanoOverview T208 is the upgrade version of T200, supports up to 6 cell 18650 battery, can provide enough power supply for your outdoor scientific research. We no longer use cable connections and use new and more reliable GPIO connections. The T208 is an advanced uninterruptible power supply (UPS) expansion board specially designed for NVIDIA Jetson Nano Developer Kit. It provides Max 5. 1V 8000mA Power Backup for even the most demanding Jetson Nano set
Overview
T208 is the upgrade version of T200, supports up to 6-cell 18650 battery, can provide enough power supply for your outdoor scientific research. We no longer use cable connections and use new and more reliable GPIO connections.
The T208 is an advanced uninterruptible power supply (UPS) expansion board specially designed for NVIDIA Jetson Nano Developer Kit. It provides Max 5.1V 8000mA Power Backup for even the most demanding Jetson Nano set ups, intelligent & safe power management, AC power loss/ power adapter failure detection, auto power-on, full power-off from software, advanced system power path management, i2c & LED fuel-gauge systems, and with 6-cell 18650 battery holder.
WIKI for reference here.
Key Features
- For use with: Jetson Nano
- Operating System: All operating systems
Smart and powerful Uninterruptible Power Supply (UPS)
- Provides continuous operations for up to 10~30hours (depending on battery type and qty used)
- Max 5.1V 8000mA Power Backup for even the most demanding Jetson Nano set ups
- 6-cell 18650 lithium Ion holder
- Can work with 1/2/3/4/5/6 18650 lithium Ion batteries
- Supports 3A fast battery charging
- Integrated battery protection circuit
- Integrated over current protection and over voltage protection
- Integrated Maxim's fuel-gauge systems (Reading battery voltage and percentage via i2c)
- Integrated TI's 10-A fully-integrated synchronous boost converter
- Intelligent automatic charging and discharging
- On-board 4 green LEDs indicate battery charging and discharging levels of 25%, 50% , 75% and 100%
- On-board blue LED show the status of power on/off
Intelligent and safe power management
- On-board push button to control power on /off - Press-ON, Hold the button pressed at least 3s -OFF)
- AC power loss or power adapter failure detection (LED and GPIO indication)
- Automatic powering off after system shutdown using the GUI
- Optional to enable Auto power on when power applied or restored
- Ultra-low standby power consumption of μA to maximize battery life
- Integrated IN-to-SYS pass-through path to pass the input voltage to the system
- Operate in both charge mode and boost mode to allow full system management and battery power management
- Advanced system power path management avoids frequent charging and extend battery life
- Advanced system power path management allows 3A fast charging and powering Jetson Nano at the same time
- Powers the Jetson Nano via the 40-pin header - no additional cabling required
- Power input jack (5.5*2.5mm) and XH2.54 connector convenient for power input
- On-board PH2.0 connector allows to connect external power switch and DIY your perfect case
- On-board XH2.54 power output connectors allow to power other devices
- Mounting holes and standoffs provide mechanical stability of the Jetson Nano and T208 assembly
Specifications
- Power input : 5Vdc ±5%, ≥4A
- UPS output : 5.1V ±5% Max 8A
- UPS charging current: 3A via DC jack
- Terminal Battery Voltage : 4.24V
- Recharge Threshold : 4.1V
Notes
- Do not apply power to your Jetson Nano via the Micro USB socket or power jack.
- Do not use 18650 battery with built-in protection circuit.
Packing List
- 1 x T208 18650 UPS&Power management Board
- 1 x Power & GPIO daughter board
- 1 x Jumper link Pitch 2.54mm
- 1 x Spacer M/F M2.5x12+6 mm
- 4 x Spacer F/F M2.5x22 mm
- 4 x Spacer M/F M2.5x23+6 mm
- 8 x Screw M2.5 x 6mm
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4.6 ★★★★★
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Product Reviews
★★★★★ 5
Great quality
Size: 6 Ounce (Pack of 1)
Thinksport SPF 50+ Mineral Sunscreen with Zinc is a reliable, high‑protection option that feels lightweight and non‑greasy on the skin. It applies smoothly without leaving too much white cast for everyday use, and I love that it’s mineral‑based with zinc for strong UVA/UVB defense. Great for active days outdoors. Highly recommend for sensitive skin and safe sun coverage!
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Reviewed in the United States on March 24, 2026
★★★★★ 5
Brown skin approved!
Size: 6 Ounce (Pack of 1), Size: 6 Ounce (Pack of 1)
Does not leave a white cast, feels very light on the skin. Scanned on Yuka and was a 86/100 green zone! It’s so hard to find a sunscreen that isn’t trying to poison you, scanned all the sunscreen at Walmart and were rated a 1/100 through 6/100. Which brought me to Amazon. Thinksport has my vote on goodness and healthiness, would buy again!
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Reviewed in the United States on May 29, 2026
★★★★★ 5
My favorite... And I'm picky.
Size: 3 Ounce (Pack of 1)
I've become a little obsessed with sunscreen over the last past 5 years. I have olive skin and developed melasma after my first pregnancy. I learned the hard way that chemical sunscreens don't help if you have melasma - and they actually make the dark spots even worse. Also the active ingredients in chemical sunscreens (like Oxybenzone and Octinoxate) are absorbed by your skin, and may cause allergies, hormonal imbalance and be toxic overtime. After learning that, I started wearing only mineral sunscreen (active ingredient is zinc and/or titanium dioxide). These are not absorbed and works by creating a physical barrier that reflects the sun (some studies suggest that some nanoparticles of zinc may be absorbed by your skin, so to be really, really safe you should look for non-nano particles).
After trying a few brands, I realized the sunscreens with only zinc in their formulas worked better than the blends with titanium dioxide, but this is just my personal preference I guess. And the higher the percentage of zinc, the better.
Most pure mineral sunscreens out there are 10-ish % zinc, SPF 30, 40 min water resistant - which is ok.
Thinksport goes beyond that: It's 20% non-nano zinc, SPF 50+, 80 min water resistant. It really can't get any better than that!
The lotion is not extremely thick when compared to other sunscreens I've tried and I find it pretty easy to apply. As every zinc sunscreen, it does leave a little fine white cast, but honestly Thinksport is not bad at all! It smells nice, lightly citrusy - and the smell vanishes soon. And, it's not overpriced.
Best I've tried so far.
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Reviewed in the United States on April 15, 2016
★★★★★ 3
Works but will Dry Out Your Skin
Size: 6 Ounce (Pack of 1)
I am a swim instructor at an outdoor pool and this stuff DOES work. I can apply it at the beginning of a 5 hour shift and while I have experienced light tanning it has protected against burning completely without reapplication.
The white cast is significant though I don't mind it aesthetically, I know its there for protection . It does rub off on things though so consider yourself warned.
Major Con: it is incredibly drying, and the soap needed to scrub it off is A LOT. That coupled with chlorine is a lot for my skin . Still on my sunscreen journey.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
My Go-To Sunscreen for Every Outdoor Adventure!
Style: SPF 70, Size: 6.5 Ounce (Pack of 1)
The Neutrogena Beach Defense Sunscreen Spray SPF 50 has quickly become my favorite sunscreen for beach days, my Florida hot runs, and everyday outdoor activities. It offers everything I need in a sun protection product and more.
Why I Love It:
Excellent Protection: The SPF 50 broad-spectrum coverage does a fantastic job shielding my skin from both UVA and UVB rays. I’ve used it for hours on my runs, at the beach and never burned.
Water & Sweat Resistant: I love that it stays on even after swimming or sweating. It’s labeled as water-resistant for up to 80 minutes, and it lives up to the claim.
Quick & Easy Application: The spray format is super convenient. It applies evenly, dries fast, and doesn’t leave my skin feeling sticky or greasy.
Great Scent: It has a light, fresh scent that smells like summer without being overwhelming.
Gentle on Skin: I have sensitive skin, and this sunscreen never causes any irritation or breakouts like others have in the past.
This sunscreen checks all the boxes; strong protection, easy to apply, and pleasant to wear. I’ve already repurchased it multiple times and always keep a bottle in my beach bag. Highly recommend for anyone looking for dependable and mess-free sun protection!
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Reviewed in the United States on June 12, 2025