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popularBojjihuntindeals | Staff posted Dec 10, 2025 08:35 PM
popularBojjihuntindeals | Staff posted Dec 10, 2025 08:35 PM

LiTHELi U20 Replacement Lithium Battery Pack 2.0Ah 20V $14.22 + Free Shipping w/ Prime or on $35+

$14

$30

53% off
Amazon
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Amazon [amazon.com] has LiTHELi U20 Replacement Lithium Battery Pack 2.0Ah 20V for $14.22. Shipping is free w/ Prime or on $35+.


Product Description from Amazon:
  • Take the U20 SUPER BATTERY with you on your outdoor adventures, camping trips, yard work, DIY projects, or just to the office. The high-quality EV-grade cell is safe for extreme temperatures down to -20℃, providing reliable power in any environment.
  • The U-Battery Plus boasts a powerful output capacity of up to 45W, making it compatible with a wide range of devices, such as laptops, smartphones, tablets, drones, and more.
  • Charge your devices with the two-way USB-C input/output port, saving you time and hassle.
  • In addition to charging electronics, the U20 SUPER BATTERY is also compatible with Litheli U20 tools. When used to power U20 tools on gardening or DIY projects, the U-Battery Plus streamlines tasks and improves overall efficiency.
  • With 20,000mAh capacity, the battery provides ample power to recharge your laptop up to 0.8 times, phone up to 1.8 times, and iPad up to 1.2 times, as well as enabling garden tools to sustain a 20-minute work duration.
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Amazon [amazon.com] has LiTHELi U20 Replacement Lithium Battery Pack 2.0Ah 20V for $14.22. Shipping is free w/ Prime or on $35+.


Product Description from Amazon:
  • Take the U20 SUPER BATTERY with you on your outdoor adventures, camping trips, yard work, DIY projects, or just to the office. The high-quality EV-grade cell is safe for extreme temperatures down to -20℃, providing reliable power in any environment.
  • The U-Battery Plus boasts a powerful output capacity of up to 45W, making it compatible with a wide range of devices, such as laptops, smartphones, tablets, drones, and more.
  • Charge your devices with the two-way USB-C input/output port, saving you time and hassle.
  • In addition to charging electronics, the U20 SUPER BATTERY is also compatible with Litheli U20 tools. When used to power U20 tools on gardening or DIY projects, the U-Battery Plus streamlines tasks and improves overall efficiency.
  • With 20,000mAh capacity, the battery provides ample power to recharge your laptop up to 0.8 times, phone up to 1.8 times, and iPad up to 1.2 times, as well as enabling garden tools to sustain a 20-minute work duration.

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Dec 10, 2025 10:46 PM
444 Posts
Joined Nov 2006
okstuvDec 10, 2025 10:46 PM
444 Posts
Interesting product, but the product specs don't really make sense. It's (up to) 20V, and in the "About this item" section it claims to be 20,000mAh. The listing also states it's 2AH, which is equivalent to 2,000mAh. So which capacity is it? My guess is that it's 2ah at 20v...

Further evidence on the actual capacity here is where in the description it states this will charge a iphone 1.8 times. iPhone 16 is 14 watthour battery and the 16 plus is 18 watt hours. So that would be, generously, about 40 watt-hours of energy stored in this pack, which means if you have a device that charges off of it at 20 watts it would run out of power after 2 hours (40 watt hours).

All that said, it's probably a good price for a highly-reviewed 30-40 watt hours of juice in a power brick.
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Dec 10, 2025 11:41 PM
821 Posts
Joined Jun 2019
Ruyi
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This user is an Expert in Home & Home Improvement
Dec 10, 2025 11:41 PM
821 Posts
I. have the 4ah version, and it clearly says in the back 4.0AH/20000mAh, so it is 10000mAh version?
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Dec 10, 2025 11:45 PM
6,365 Posts
Joined Nov 2006
MinhTrinh
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Dec 10, 2025 11:45 PM
6,365 Posts
Can i use this for the utility wagon
Dec 11, 2025 12:42 AM
2,554 Posts
Joined Apr 2011
LobbymonsterDec 11, 2025 12:42 AM
2,554 Posts
Quote from MinhTrinh :
Can i use this for the utility wagon
Yes, should be able to
Dec 11, 2025 06:08 AM
1,067 Posts
Joined Dec 2004
lebulldogDec 11, 2025 06:08 AM
1,067 Posts
Quote from Ruyi :
I. have the 4ah version, and it clearly says in the back 4.0AH/20000mAh, so it is 10000mAh version?
Strange, how to explain. 2 ampere-hours (Ah) is equivalent to 2000 milliampere-hours (mAh), so 4Ah is equivalent to 4000 mAh.
Dec 11, 2025 04:12 PM
96 Posts
Joined Oct 2017
JordanB2059Dec 11, 2025 04:12 PM
96 Posts
Quote from lebulldog :
Strange, how to explain. 2 ampere-hours (Ah) is equivalent to 2000 milliampere-hours (mAh), so 4Ah is equivalent to 4000 mAh.
It always bothered me that batteries were rated in mAh instead of just joules or watt-hours, or some actual measure of power. But at least in the past all these things ran on a single voltage so it was simple enough for anyone who cared. Now with USB handling multiple voltages, mAH makes absolutely no sense. They need to specify the actual voltage the battery is operating at. Just tell us the actual energy capacity! And for sketchier brands, they know most consumers don't have the time or tools to verify the capacity, so they exaggerate the numbers.
1
Dec 16, 2025 01:21 AM
1,019 Posts
Joined Dec 2019
golfreakDec 16, 2025 01:21 AM
1,019 Posts
I have this version in a 4ah.
It makes a great power bank as the USB-C is fairly strong and enough to charge a tablet.
It's even strong enough to charge my usb-c laptop. Usually laptops take 65w but it will charge with >28w.
Supposably this will output 45w which is very high for a power bank.
I don't have any tool that uses these battery but it's basically a 18v battery that acts as a power bank.
These are 18v. A 4ah battery is 72wh(18x4) capacity.
2.5ah is 45ah and a 2ah is 36ah capacity.
The 4ah version is $20 so I'd rather get that vs $14 for a 2ah.

If you look at Amazon, any power bank that's able to output >30w will cost you ~$30.
For $20(the 4ah version) being able to output 45w is a fantastic price.
Last edited by golfreak December 15, 2025 at 05:36 PM.

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