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expiredJuJuFrankenbean | Staff posted Feb 26, 2025 5:53 PM

Belkin BoostCharge 4-Port USB Power Extender (2x USB-C & 2x USB-A)

$12

$25

52% off
+ Free Shippingat Best Buy
27 Comments
45.3K Views
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Deal Details
Best Buy has Belkin BoostCharge 4-Port USB Power Extender (2x USB-C & 2x USB-A) for $11.99. Shipping is free for My Best Buy members (free to join). Otherwise, select free store pickup where available.

Thanks to Deal Hunter JuJuFrankenbean for sharing this deal.

Note: Availability for store pickup may vary by location.

Editor's Notes

Written by johnny_miller | Staff
  • This price is $3 less than our Frontpage Deal from October that included this item.
  • This product is rated 4.6 out of 5 stars based on over 970 Amazon customer reviews.

Original Post

Written by JuJuFrankenbean | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Best Buy has Belkin BoostCharge 4-Port USB Power Extender (2x USB-C & 2x USB-A) for $11.99. Shipping is free for My Best Buy members (free to join). Otherwise, select free store pickup where available.

Thanks to Deal Hunter JuJuFrankenbean for sharing this deal.

Note: Availability for store pickup may vary by location.

Editor's Notes

Written by johnny_miller | Staff
  • This price is $3 less than our Frontpage Deal from October that included this item.
  • This product is rated 4.6 out of 5 stars based on over 970 Amazon customer reviews.

Original Post

Written by JuJuFrankenbean | Staff

Community Voting

Deal Score
+29
Good Deal
Visit Best Buy

Price Intelligence

Deal History

Post Date Sold By Sale Price Activity
03/12/25Best Buy$12
1

Top Comments

The_Love_Spud
5.6KComments
2.1KReputation
Warning: the port labeling suggests that this device supports up to 60W. However, the device is limited to 30W charging. This will significantly complicate using any more than two ports at once without understanding the loads of the devices you attach. There are definitely some convenience charging scenarios where this could provide some value, but this should only appeal to a very niche set of users.

Good luck!
Jon
Go to Comment
The_Love_Spud
5.6KComments
2.1KReputation
It's far from being as simple as an AC power strip (where the incoming voltage is shared across all outgoing ports). Even the cables in USB-C aren't completely passive (cables rated for 3A or less identify themselves in truly passive ways using resistors, whereas 5A cables identify themselves with an e-marker, an active chip!).

Instead this device accepts an incoming Power Delivery 30W source. Documentation is unclear as to whether this supports 15V 2A and/or 20V 1.5A as the 30W source.

I would guess (without better documentationf from Belkin) that on the output side only 5V is output at up to the current (amperage) limit of the associated port type: up to 3A for USB-C, or up to 2.4A for USB-A. This is created through DC to DC power conversion taking the incoming higher-voltage (15V or 20V), lower current (2A or 1.5A) source and transforming it into a low-voltage (5V), higher-current (up to 3A in a single USB-C port, up to 6A across all ports max.) supply. Note that it is possible that higher voltage profiles might be supported on the USB-C output ports, but this would be surprising given the low output power ratings. As noted below, this device only supports 5V output.

Sorry if this is a bunch of technical stuff, but know that the short version is that the Belkin device is far from passive. Rather, it is an active power converter that must convert the incoming voltage as well as negotiate with any connected devices being charged,

Good luck!
Jon
Go to Comment
AquaPicture2620
594Comments
397Reputation
Open box $3.99 with free shipping is a better deal (obviously ymmv), although I don't need it even at that price.
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27 Comments

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Pro
Feb 26, 2025 11:09 PM
594 Comments
Joined Jul 2018
AquaPicture2620
Pro
Feb 26, 2025 11:09 PM
594 Comments

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Open box $3.99 with free shipping is a better deal (obviously ymmv), although I don't need it even at that price.
2
Feb 27, 2025 12:25 AM
4K Comments
Joined Sep 2018
EfficientSnail709Feb 27, 2025 12:25 AM
4K Comments

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Thanks, OP! I was able to purchase one (for pickup) at a local BB and have one shipped. Both $3.99. Both "open-box" and (supposedly) in "excellent" condition. YMMV for both local pickup and shipping availability. I just wanted to pass this info. along. Good luck!
Last edited by EfficientSnail709 February 26, 2025 at 04:28 PM.
1
Feb 27, 2025 12:32 AM
4K Comments
Joined Sep 2018
EfficientSnail709Feb 27, 2025 12:32 AM
4K Comments
There's no reason why this can't be used at home as well. Rather than connecting your charging cable at the wall, you can keep this in a more convenient spot. I'm not trying to be "Captain Obvious". I'm just mentioning this, as it's described primarily as a vehicle accessory.
Last edited by EfficientSnail709 February 26, 2025 at 04:35 PM.
Feb 27, 2025 12:48 AM
5.6K Comments
Joined Jun 2019
The_Love_SpudFeb 27, 2025 12:48 AM
5.6K Comments

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Warning: the port labeling suggests that this device supports up to 60W. However, the device is limited to 30W charging. This will significantly complicate using any more than two ports at once without understanding the loads of the devices you attach. There are definitely some convenience charging scenarios where this could provide some value, but this should only appeal to a very niche set of users.

Good luck!
Jon
4
5
Feb 27, 2025 12:57 AM
50 Comments
Joined Dec 2021
TakeyououtbackFeb 27, 2025 12:57 AM
50 Comments
Check Best Buy open box. Definitely a great deal at 3.99. Thank you OP.
Feb 27, 2025 1:29 AM
156 Comments
Joined Feb 2010
staticblakeFeb 27, 2025 1:29 AM
156 Comments
Open box is a hell of a deal. Thanks
Feb 27, 2025 2:06 AM
1.6K Comments
Joined Jan 2010
suprenFeb 27, 2025 2:06 AM
1.6K Comments
got open box for $4

Sign up for a Slickdeals account to remove this ad.

Feb 27, 2025 5:22 AM
96 Comments
Joined Feb 2019
AquaPanther5996Feb 27, 2025 5:22 AM
96 Comments
No more open box :-(
Feb 27, 2025 6:31 AM
4K Comments
Joined Sep 2018
EfficientSnail709Feb 27, 2025 6:31 AM
4K Comments
Quote from AquaPanther5996 View quoted comment :
No more open box :-(
That varies by location. It doesn't mean that the entire chain is sold out of open-box units. Some stores have them, others not. I'd suggest that everyone check their local area.
It's possible that there are no more available for shipping. I tried to get two and ended up with one. That may also vary by location (as they have multiple warehouses). It's all potentially YMMV.
Last edited by EfficientSnail709 February 26, 2025 at 10:34 PM.
Feb 27, 2025 8:42 AM
4K Comments
Joined Sep 2018
EfficientSnail709Feb 27, 2025 8:42 AM
4K Comments
Quote from The_Love_Spud View quoted comment :
Warning: the port labeling suggests that this device supports up to 60W. However, the device is limited to 30W charging. This will significantly complicate using any more than two ports at once without understanding the loads of the devices you attach. There are definitely some convenience charging scenarios where this could provide some value, but this should only appeal to a very niche set of users.

Good luck!
Jon
I appreciate your insight, but I'm a bit confused.... Wouldn't the capacity of this (what I consider to be) "extender" rely upon the output of the charging device that it's connected to? I realize that it's labeled "boost-charge", but as a passive device, how is it "boosting" the output? Perhaps you (or anyone with a definitive answer) can provide some clarity about this. Thanks!
Last edited by EfficientSnail709 February 27, 2025 at 12:45 AM.
Feb 27, 2025 11:43 AM
5.6K Comments
Joined Jun 2019
The_Love_SpudFeb 27, 2025 11:43 AM
5.6K Comments

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

Quote from EfficientSnail709 View quoted comment :
I appreciate your insight, but I'm a bit confused.... Wouldn't the capacity of this (what I consider to be) "extender" rely upon the output of the charging device that it's connected to? I realize that it's labeled "boost-charge", but as a passive device, how is it "boosting" the output? Perhaps you (or anyone with a definitive answer) can provide some clarity about this. Thanks!
It's far from being as simple as an AC power strip (where the incoming voltage is shared across all outgoing ports). Even the cables in USB-C aren't completely passive (cables rated for 3A or less identify themselves in truly passive ways using resistors, whereas 5A cables identify themselves with an e-marker, an active chip!).

Instead this device accepts an incoming Power Delivery 30W source. Documentation is unclear as to whether this supports 15V 2A and/or 20V 1.5A as the 30W source.

I would guess (without better documentationf from Belkin) that on the output side only 5V is output at up to the current (amperage) limit of the associated port type: up to 3A for USB-C, or up to 2.4A for USB-A. This is created through DC to DC power conversion taking the incoming higher-voltage (15V or 20V), lower current (2A or 1.5A) source and transforming it into a low-voltage (5V), higher-current (up to 3A in a single USB-C port, up to 6A across all ports max.) supply. Note that it is possible that higher voltage profiles might be supported on the USB-C output ports, but this would be surprising given the low output power ratings. As noted below, this device only supports 5V output.

Sorry if this is a bunch of technical stuff, but know that the short version is that the Belkin device is far from passive. Rather, it is an active power converter that must convert the incoming voltage as well as negotiate with any connected devices being charged,

Good luck!
Jon
Last edited by The_Love_Spud February 28, 2025 at 06:19 PM.
4
2
Feb 27, 2025 1:34 PM
4K Comments
Joined Sep 2018
EfficientSnail709Feb 27, 2025 1:34 PM
4K Comments
Quote from The_Love_Spud View quoted comment :
It's far from being as simple as an AC power strip (where the incoming voltage is shared across all outgoing ports). Even the cables in USB-C aren't completely passive (cables rated for 3A or less identify themselves in truly passive ways using resistors, whereas 5A cables identify themselves with an e-marker, an active chip!).

Instead this device accepts an incoming Power Delivery 30W source. Documentation is unclear as to whether this supports 15V 2A and/or 20V 1.5A as the 30W source.

I would guess (without better documentationf from Belkin) that on the output side only 5V is output at up to the current (amperage) limit of the associated port type: up to 3A for USB-C, or up to 2.4A for USB-A. This is created through DC to DC power conversion taking the incoming higher-voltage (15V or 20V), lower current (2A or 1.5A) source and transforming it into a low-voltage (5V), higher-current (up to 3A in a single USB-C port, up to 6A across all ports max.) supply. Note that it is possible that higher voltage profiles might be supported on the USB-C output ports, but this would be surprising given the low output power ratings.

Sorry if this is a bunch of technical stuff, but know that the short version is that the Belkin device is far from passive. Rather, it is an active power converter that must convert the incoming voltage as well as negotiate with any connected devices being charged,

Good luck!
Jon
Interesting!...Thanks!....I was confused because the only devices of this type that I've seen simply extended the outputs of an existing charger. I should've realized that, once multiple ports are involved, it needs to be a more sophisticated device.
Feb 27, 2025 10:29 PM
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Joined Aug 2023
PowerfulName4771Feb 27, 2025 10:29 PM
1.3K Comments

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Quote from EfficientSnail709 View quoted comment :
Interesting!...Thanks!....I was confused because the only devices of this type that I've seen simply extended the outputs of an existing charger. I should've realized that, once multiple ports are involved, it needs to be a more sophisticated device.
I've had this device for a while and using it. I can confirm it doesn't do any more than 30W total output. You can connect it to a 65W, 30W or 100W charger, the Output is always 30W. When more than 2 devices are connected the power is shared across all devices.

With 4 devices connected - ideally it should be 7.5W per device. However, on actual observations it's more like 7.5W for the USB C and 5W for the USB-A.

In short, it's useful to charge lower power devices such as earbuds or smartwatch- but really not superuseful for 2 or 3 phones together. Still serves ok for 1 phone and low powered accessories.
Last edited by PowerfulName4771 February 27, 2025 at 08:49 PM.
1
Feb 28, 2025 12:17 AM
358 Comments
Joined Dec 2011
Sasuke18Feb 28, 2025 12:17 AM
358 Comments
Besides power, can these ports support data? Like for a mouse or keyboard?
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Feb 28, 2025 1:52 AM
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The_Love_SpudFeb 28, 2025 1:52 AM
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Quote from Sasuke18 View quoted comment :
Besides power, can these ports support data? Like for a mouse or keyboard?
No.

Good luck!
Jon
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