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TattyBear | Staff 6.6K Views
May 4, 2026 3:42 PM

2-Pack: Letscom 30,000mAh Mobile Power Banks w/ 4 Built-in Cables & Solar Panel $29.99 + Free Shipping

$30

$140

78% off
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Deal Details
SideDeal [sidedeal.com] has a 2-Pack: Letscom 30,000mAh Mobile Power Banks w/ 4 Built-in Cables & Solar Panel on sale for $29.99 - Shipping is Free

Directions:
  1. Select your choice in the dropdown menu on the checkout page (If Applicable)
  2. Choose the Standard/Flat Shipping option (Bottom Option)
  3. Apply Code FSDEALS for Free Shipping
Features
  • 30,000mAh handles multiple full recharges
  • Four built-in cables cover basically every device
  • Solar or USB charging, your call
  • Two units β€” one for the bag, one for backup
Specifications
  • 30,000mAh Li-Polymer battery delivers multiple full recharges for phones, tablets, and other devices
  • Four USB ports plus Micro USB, USB-C, and Lightning ports β€” flexibility for whatever device you're plugging in
  • Four integrated built-in cables included: USB-A, MicroUSB, USB-C, and Lightning β€” no hunting for cords
  • Solar panel enables daytime recharging when a wall outlet isn't an option
  • LCD panel on the front displays remaining battery life at a glance
  • LED light on the back glows red, white, or blue
  • Built-in carry handle makes it easy to grab and go
  • Safety protections guard against over-charging, over-discharging, and short circuits
  • Smooth ABS and plastic casing fits comfortably in hand
  • Can be recharged via solar panel or USB-C input (wall plug & USB-C cable included)
SideDeal, Meh, and MorningSave are all sister sites owned by the original founder of Woot!
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
SideDeal [sidedeal.com] has a 2-Pack: Letscom 30,000mAh Mobile Power Banks w/ 4 Built-in Cables & Solar Panel on sale for $29.99 - Shipping is Free

Directions:
  1. Select your choice in the dropdown menu on the checkout page (If Applicable)
  2. Choose the Standard/Flat Shipping option (Bottom Option)
  3. Apply Code FSDEALS for Free Shipping
Features
  • 30,000mAh handles multiple full recharges
  • Four built-in cables cover basically every device
  • Solar or USB charging, your call
  • Two units β€” one for the bag, one for backup
Specifications
  • 30,000mAh Li-Polymer battery delivers multiple full recharges for phones, tablets, and other devices
  • Four USB ports plus Micro USB, USB-C, and Lightning ports β€” flexibility for whatever device you're plugging in
  • Four integrated built-in cables included: USB-A, MicroUSB, USB-C, and Lightning β€” no hunting for cords
  • Solar panel enables daytime recharging when a wall outlet isn't an option
  • LCD panel on the front displays remaining battery life at a glance
  • LED light on the back glows red, white, or blue
  • Built-in carry handle makes it easy to grab and go
  • Safety protections guard against over-charging, over-discharging, and short circuits
  • Smooth ABS and plastic casing fits comfortably in hand
  • Can be recharged via solar panel or USB-C input (wall plug & USB-C cable included)
SideDeal, Meh, and MorningSave are all sister sites owned by the original founder of Woot!

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16 Comments

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May 4, 2026 4:33 PM
1K Comments
Joined Apr 2017
MrDealYoGurlMay 4, 2026 4:33 PM
1K Comments
Any info on this brand? Searched the name and there was nothing at all on Amazon
May 4, 2026 4:37 PM
94 Comments
Joined Sep 2011
bweechMay 4, 2026 4:37 PM
94 Comments

Our community has rated this post as helpful. If you agree, why not thank

Note 30,000mAh is over the FAA's limit and requires special approval to carry on. https://www.tsa.gov/travel/securi...ies&page=1
7
May 4, 2026 5:01 PM
3K Comments
Joined Oct 2008
asukaMay 4, 2026 5:01 PM
3K Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from bweech View quoted comment :
Note 30,000mAh is over the FAA's limit and requires special approval to carry on. https://www.tsa.gov/travel/securi...ies&page=1
If the voltage matches 3.7v. It's watt hours not amps.

Possible these are slightly lower. TSA is unlikely to fuss over it.
2
May 4, 2026 5:04 PM
154 Comments
Joined May 2021
SociableScent1572May 4, 2026 5:04 PM
154 Comments
This is a really nice deal as long as its not the kind of thing that stops working quickly and becomes a brick. curious if anybody has any further information on them because ill buy if they have reliable internal components.
May 4, 2026 5:09 PM
18 Comments
Joined Jul 2021
SmilingCrib3254May 4, 2026 5:09 PM
18 Comments
Thank you for this deal. Hopefully the solar paner work better than others
1
May 4, 2026 5:11 PM
1.1K Comments
Joined Mar 2014
EpicDealzMay 4, 2026 5:11 PM
1.1K Comments

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Quote from MrDealYoGurl View quoted comment :
Any info on this brand? Searched the name and there was nothing at all on Amazon
I get the hesitation here. I'm not seeing this power bank sold by any well-known retailers, which makes me question the quality of the cells inside. Plenty of no-name options on Amazon are already hit-or-miss, but when a product isn't carried by sellers that typically enforce safety standards, that's a bit of a red flag.
I recently watched a video featuring Adam Savage where they used CT scans to look inside different battery cells, and it really highlighted how inconsistent (and sometimes unsafe) these cheaper, off-brand units can be.
Also, "leaving it in the sun to charge" which is a big selling point feature of these could really be bad if the cells dont have the saftey standards in place to protect from catching fire. Heat and lithium batteries aren't exactly a great combination, so that feels like it could add another layer of risk.
Would be great to see if they have the safety features in these cells that they should, I simply don't trust that they do at this price and it only being sold by this retailer.
Last edited by EpicDealz May 4, 2026 at 10:14 AM.
2
May 4, 2026 5:11 PM
539 Comments
Joined Nov 2016
grayguy1May 4, 2026 5:11 PM
539 Comments
Am I reading it correctly that it's capped at 10 watt output?
1

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May 4, 2026 5:19 PM
31 Comments
Joined Oct 2007
givinupthefightMay 4, 2026 5:19 PM
31 Comments

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I got these from them on a previous sale. Note: they're huge. Like, the size of a brick. Also it takes like a week for them to charge via solar.
2
May 4, 2026 5:20 PM
31 Comments
Joined Oct 2007
givinupthefightMay 4, 2026 5:20 PM
31 Comments
Quote from bweech View quoted comment :
Note 30,000mAh is over the FAA's limit and requires special approval to carry on. https://www.tsa.gov/travel/securi...ies&page=1
I got these on a previous sale. You wouldn't want to carry one on a plane anyway, they're huge. Think like an actual brick large.
1
2
Pro
May 4, 2026 8:20 PM
2.1K Comments
Joined Jul 2019
WoodSlayR
Pro
May 4, 2026 8:20 PM
2.1K Comments
Really good price, $ per Ah wise, at just 50 cents per Ah. but I've never been a fan of fixed built in cables for battery packs. The entire pack outside of the batteries eventually not holding a charge will last for a very long time. It's basically all solid state so it's typically going to last longer than cables that will likely wear out before anything else does. On top of this, some phones or basically any USB chargeable device can be cable sensitive and are picky what cables they like. If they happen to not like the built in ones, what's the point?. Whenever I hear that somebodies phone isn't charging well, I'll tell them to start trying different cables and they'll likely find one that charges better than the rest. Cant do that with permanently fixed cables. Built in cables comes off as gimmicky to me. IMHO, I think they are better off without them or at least unnecessary if it already has regular USB ports on it like it does.
Last edited by WoodSlayR May 4, 2026 at 01:35 PM.
2
Pro
May 4, 2026 8:48 PM
2.1K Comments
Joined Jul 2019
WoodSlayR
Pro
May 4, 2026 8:48 PM
2.1K Comments
I feel like once a devices capacity gets into the 10's of thousands of mAh, they should just start rating them in Ah's. I think since 30,000 is a way bigger number than 30, non tech savvy people see the bigger number and think it must be better. If you're going to use huge rounded off numbers like 30,000mAh Why not just say 30Ah? Same as like why would anyone say something weighs 30,000g when you can just say 30kg?
Last edited by WoodSlayR May 4, 2026 at 03:28 PM.
1
3
May 5, 2026 2:38 AM
1.4K Comments
Joined Jan 2009
Devaney1984May 5, 2026 2:38 AM
1.4K Comments
Quote from givinupthefight View quoted comment :
I got these from them on a previous sale. Note: they're huge. Like, the size of a brick. Also it takes like a week for them to charge via solar.
Thanks for the info, that's hilarious... I'll be passing
1
Pro
May 6, 2026 6:51 PM
1.6K Comments
Joined Oct 2014
online4fun
Pro
May 6, 2026 6:51 PM
1.6K Comments
Quote from givinupthefight View quoted comment :
I got these from them on a previous sale. Note: they're huge. Like, the size of a brick. Also it takes like a week for them to charge via solar.
take a week to get 10% or less.
Expert
This user is an Expert in Tech & Electronics
May 7, 2026 2:00 PM
20.8K Comments
Joined Sep 2011
bluekiwi
Expert
This user is an Expert in Tech & Electronics
May 7, 2026 2:00 PM
20.8K Comments
Quote from SmilingCrib3254 View quoted comment :
Thank you for this deal. Hopefully the solar paner work better than others
Solar panel on these is useless

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May 7, 2026 2:29 PM
94 Comments
Joined Oct 2023
BeautifulBanana6046May 7, 2026 2:29 PM
94 Comments
Quote from grayguy1 View quoted comment :
Am I reading it correctly that it's capped at 10 watt output?
Probably. Its the new IPhone Waller but portable. You know those iPhone people who always need to be near a charinging station. πŸ˜†

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