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deeznutz206 4.9K Views
Nov 27, 2025 9:21 PM

BF Sale: WattCycle 48V 100ah Server Rack LiFEPO4 battery - $651 AC! Lowest price I have seen

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Update: So after a couple of messages back and forth with the CS team "complaining" that Eco-Worthy was selling their 48v 100ah server rack for $640, they decided to beat that price and it is now $630 with the code and credited me the difference.

Price is now $630. Yay.

After doing some searches for a 48V server rack, I found WattCycle had a BF Sale for this 48V 100ah server rack for $699. After contacting them to see if there were any other discount that they could provide for a repeat customer and given that this is BF, they gave me a code for extra 7%. So the price will be $651 after coupon. Note: uncheck shipping insurance. This is the lowest I have seen.

Looked at what Eco-Worthy was selling it for because they have been on fire in terms of crazy low prices but they were still selling it for $799 on Ebay. Checked out Aliexpress as well and it showed $725.

WattCycle was also given a thumbs up by Will Prowse as one of the top battery that he has reviewed. Eco-Worthy is a mid tier battery. Search on YT under Will Prowse as he has done many comparisons and reviews.

Not sure how long this sale will last but I'm sure at least until Cyber Monday. So order if you have been looking for this kind of system.

Code is WTUS338DK
Here is the link to the product page: https://www.wattcycle.com/collections/48v-batteries/products/48v-100ah-server-racks-bluetooth-lithiu... [wattcycle.com]

Product Details:
High-Craftsmanship & Ultra-Reliable Power for Home Storage Emergency, Off-Grid, Industrial, Commerical, and UPS.
  • 100X Balance Speed: 3A active balancing vs. 0.03A passive balance, WattCycle has faster multi-channel equalization efficiency, reduces energy loss, and maximizes battery life.
  • BYD Grade A Cells: supports 1C full charge/discharge and 10+ years of easy use, superior to peers.
  • 100A BMS Protection: provides 20+ protections & 200A (2s) peak current, low-temp cutoff & overheat protection.
  • More Ways to Monitor: supports LCD touchscreen/APP fast connection/CAN/RS232/RS485 communication protocol.
  • Stackable 3U Rack-Mount: fits 3U cabinets, plug-and-play easy installation & space saving.
  • Easy to Expand: Max. 20P to release 102.4kWh and support master/slave auto-recognition function.
  • 80% lighter & 75% smaller: 1 unit equals 8x 12V100Ah lead-acid batteries.
  • Durability Outperforms Peers: high-quality metal casing with vibration-resistant, wear-resistant, and excellent heat dissipation.
  • Save More: $300/year savings with solar storage or off-peak charging with peak discharge.
  • Best Service: 5+2 years unique warranty, shipping insurance, and 24/7 professional technical support.
  • Certified: SDS / UL / UN38.3 / IEC / CE / FCC.
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Update: So after a couple of messages back and forth with the CS team "complaining" that Eco-Worthy was selling their 48v 100ah server rack for $640, they decided to beat that price and it is now $630 with the code and credited me the difference.

Price is now $630. Yay.

After doing some searches for a 48V server rack, I found WattCycle had a BF Sale for this 48V 100ah server rack for $699. After contacting them to see if there were any other discount that they could provide for a repeat customer and given that this is BF, they gave me a code for extra 7%. So the price will be $651 after coupon. Note: uncheck shipping insurance. This is the lowest I have seen.

Looked at what Eco-Worthy was selling it for because they have been on fire in terms of crazy low prices but they were still selling it for $799 on Ebay. Checked out Aliexpress as well and it showed $725.

WattCycle was also given a thumbs up by Will Prowse as one of the top battery that he has reviewed. Eco-Worthy is a mid tier battery. Search on YT under Will Prowse as he has done many comparisons and reviews.

Not sure how long this sale will last but I'm sure at least until Cyber Monday. So order if you have been looking for this kind of system.

Code is WTUS338DK
Here is the link to the product page: https://www.wattcycle.com/collections/48v-batteries/products/48v-100ah-server-racks-bluetooth-lithiu... [wattcycle.com]

Product Details:
High-Craftsmanship & Ultra-Reliable Power for Home Storage Emergency, Off-Grid, Industrial, Commerical, and UPS.
  • 100X Balance Speed: 3A active balancing vs. 0.03A passive balance, WattCycle has faster multi-channel equalization efficiency, reduces energy loss, and maximizes battery life.
  • BYD Grade A Cells: supports 1C full charge/discharge and 10+ years of easy use, superior to peers.
  • 100A BMS Protection: provides 20+ protections & 200A (2s) peak current, low-temp cutoff & overheat protection.
  • More Ways to Monitor: supports LCD touchscreen/APP fast connection/CAN/RS232/RS485 communication protocol.
  • Stackable 3U Rack-Mount: fits 3U cabinets, plug-and-play easy installation & space saving.
  • Easy to Expand: Max. 20P to release 102.4kWh and support master/slave auto-recognition function.
  • 80% lighter & 75% smaller: 1 unit equals 8x 12V100Ah lead-acid batteries.
  • Durability Outperforms Peers: high-quality metal casing with vibration-resistant, wear-resistant, and excellent heat dissipation.
  • Save More: $300/year savings with solar storage or off-peak charging with peak discharge.
  • Best Service: 5+2 years unique warranty, shipping insurance, and 24/7 professional technical support.
  • Certified: SDS / UL / UN38.3 / IEC / CE / FCC.

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38 Comments

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Pro
Nov 28, 2025 1:37 AM
1K Comments
Joined May 2012
luddite_cyborg
Pro
Nov 28, 2025 1:37 AM
1K Comments
Don't see straightforward way to use coupon code, I had to select checkout option with the shipping insurance, put code in on next page (couldn't deselect insurance), went back to previous page and coupon was applied with other checkout options available then. Not going to checkout though, going to look for more deals over the weekend
Nov 28, 2025 3:06 AM
31 Comments
Joined Dec 2007
kevinrugNov 28, 2025 3:06 AM
31 Comments
I looked through Will Prowse's reviews and he only reviews one Watt cycle server rack format battery. It's a slightly different model, no LCD screen but looks similar. From what I can tell he hasn't reviewed this specific model. The one he did review is mediocre quality and features. He compares it to the ecoworthy and the ecoworthy is better in a lot of ways except for having longer leads. Without a more indepth review of this one I'm staying away.
Pro
Nov 28, 2025 3:18 AM
1K Comments
Joined May 2012
luddite_cyborg
Pro
Nov 28, 2025 3:18 AM
1K Comments
Quote from kevinrug View quoted comment :
I looked through Will Prowse's reviews and he only reviews one Watt cycle server rack format battery. It's a slightly different model, no LCD screen but looks similar. From what I can tell he hasn't reviewed this specific model. The one he did review is mediocre quality and features. He compares it to the ecoworthy and the ecoworthy is better in a lot of ways except for having longer leads. Without a more indepth review of this one I'm staying away.
Unless they sent some early to reviewers we won't have one for a while for this new model
Nov 28, 2025 3:31 AM
1.8K Comments
Joined Dec 2005
alphawaveNov 28, 2025 3:31 AM
1.8K Comments
Will and Wattcycle are NOT on good terms, the likelihood of them sending anything his way is nil. OP should reconsider using Will as an endorsement for this brand.

Pro
Nov 28, 2025 3:46 AM
1K Comments
Joined May 2012
luddite_cyborg
Pro
Nov 28, 2025 3:46 AM
1K Comments
Quote from alphawave View quoted comment :
Will and Wattcycle are NOT on good terms, the likelihood of them sending anything his way is nil. OP should reconsider using Will as an endorsement for this brand.
What's the story there?
I've been on his forum recently and Wattcycle is at least advertising on his site still
Nov 28, 2025 3:49 AM
1 Comments
Joined Nov 2025
Richard_TomasNov 28, 2025 3:49 AM
1 Comments
Quote from luddite_cyborg View quoted comment :
Don't see straightforward way to use coupon code, I had to select checkout option with the shipping insurance, put code in on next page (couldn't deselect insurance), went back to previous page and coupon was applied with other checkout options available then. Not going to checkout though, going to look for more deals over the weekend
It seems that their company has upgraded this product and it looks quite good. i like new feature for this battery. I also found a more favorable discount code on their website, with a price of only $643. Coupon code: BlackFriday8%
I asked their customer service, and they told me that by going Exit the checkout page and clicking the shopping cart again, I could remove the shipping insurance. However, I'm not going to remove the shipping insurance, which means that if I need to return the item in the future, I will have to bear the shipping cost myself.
1
Nov 28, 2025 3:57 AM
1.8K Comments
Joined Dec 2005
alphawaveNov 28, 2025 3:57 AM
1.8K Comments
Quote from luddite_cyborg View quoted comment :
What's the story there?
I've been on his forum recently and Wattcycle is at least advertising on his site still
Actually best to use their blog to describe the situation:
https://www.wattcycle.com/blogs/n...test-video
Last edited by alphawave November 27, 2025 at 08:12 PM.

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Pro
Nov 28, 2025 4:22 AM
1K Comments
Joined May 2012
luddite_cyborg
Pro
Nov 28, 2025 4:22 AM
1K Comments
Quote from Richard_Tomas View quoted comment :
It seems that their company has upgraded this product and it looks quite good. i like new feature for this battery. I also found a more favorable discount code on their website, with a price of only $643. Coupon code: BlackFriday8%
I asked their customer service, and they told me that by going Exit the checkout page and clicking the shopping cart again, I could remove the shipping insurance. However, I'm not going to remove the shipping insurance, which means that if I need to return the item in the future, I will have to bear the shipping cost myself.
So you've outed yourself as clearly working for WattCycle. The best thing you could do to raise interest in this is get people to upload tear-down/review videos. I have very little info on what's inside this thing and I'm not going to buy one just to do a review. Also, no one wants that 3rd party shipping insurance, the company is on the hook already for any delivery issues before it reaches the customer's door, and the warranty terms also state that WattCycle covers RMA shipping. The only thing extra that insurance really offers is free return shipping for buyer's remorse, but since it's offered by a company I've never heard of there's no way I'd pay extra for it. Your marketing needs work
1
Original Poster
Nov 28, 2025 4:48 AM
1.8K Comments
Joined Dec 2010
deeznutz206
Original Poster
Nov 28, 2025 4:48 AM
1.8K Comments
So after a couple of messages back and forth with the CS team "complaining" that Eco-Worthy was selling their 48v 100ah server rack for $640, they decided to beat that price and it is now $630 with the code and credited me the difference.
Original Poster
Nov 28, 2025 4:56 AM
1.8K Comments
Joined Dec 2010
deeznutz206
Original Poster
Nov 28, 2025 4:56 AM
1.8K Comments
Quote from kevinrug View quoted comment :
I looked through Will Prowse's reviews and he only reviews one Watt cycle server rack format battery. It's a slightly different model, no LCD screen but looks similar. From what I can tell he hasn't reviewed this specific model. The one he did review is mediocre quality and features. He compares it to the ecoworthy and the ecoworthy is better in a lot of ways except for having longer leads. Without a more indepth review of this one I'm staying away.
I was talking about the 100ah review that Will did: https://youtu.be/UDkJ7Sq21Qw?si=nLYqKNUIQ28btEIj

On Will's Diy solar forum, the large capacity brand that he recommends is WattCycle as well. https://www.mobile-solarpower.com...eries.html

Also scroll down more and you will see Will stating that his favorite 100/200ah battery is WattCycle as well.

You can purchase from whatever company you want. I am giving people options.
Last edited by deeznutz206 November 27, 2025 at 09:01 PM.
Nov 28, 2025 6:20 AM
520 Comments
Joined Nov 2018
HairyButtGoblinNov 28, 2025 6:20 AM
520 Comments
Quote from luddite_cyborg View quoted comment :
So you've outed yourself as clearly working for WattCycle. The best thing you could do to raise interest in this is get people to upload tear-down/review videos. I have very little info on what's inside this thing and I'm not going to buy one just to do a review. Also, no one wants that 3rd party shipping insurance, the company is on the hook already for any delivery issues before it reaches the customer's door, and the warranty terms also state that WattCycle covers RMA shipping. The only thing extra that insurance really offers is free return shipping for buyer's remorse, but since it's offered by a company I've never heard of there's no way I'd pay extra for it. Your marketing needs work
Many company reps on here giving thumbs down to competitors and lifting their own merch.
1
Original Poster
Nov 28, 2025 10:39 PM
1.8K Comments
Joined Dec 2010
deeznutz206
Original Poster
Nov 28, 2025 10:39 PM
1.8K Comments
Quote from kevinrug View quoted comment :
I looked through Will Prowse's reviews and he only reviews one Watt cycle server rack format battery. It's a slightly different model, no LCD screen but looks similar. From what I can tell he hasn't reviewed this specific model. The one he did review is mediocre quality and features. He compares it to the ecoworthy and the ecoworthy is better in a lot of ways except for having longer leads. Without a more indepth review of this one I'm staying away.
This is their newest model and it looks like it is a big improvement to the previous model.
From what I can tell and looking at it's features, it now has an electronic screen/led, and a active balancing feature. And comparing this to the Eco-Worthy competitor, this WattCycle server rack has more features and is currently cheaper with the coupon code as well.
Pro
Nov 29, 2025 2:10 AM
1K Comments
Joined May 2012
luddite_cyborg
Pro
Nov 29, 2025 2:10 AM
1K Comments
Quote from deeznutz206 View quoted comment :
This is their newest model and it looks like it is a big improvement to the previous model.
From what I can tell and looking at it's features, it now has an electronic screen/led, and a active balancing feature. And comparing this to the Eco-Worthy competitor, this WattCycle server rack has more features and is currently cheaper with the coupon code as well.
If they even had a photo of the internals it would help a lot (a video review by anyone would be best). But right now it's a closed box, who knows what the build quality is like; maybe they skimped a lot in order to get the price down. Not sure if the cells are good, page says they're BYD "grade A" (marketing fluff) but that's not enough info. They don't have free returns without that add-on insurance so it's a risky buy. Looks like you ordered already so maybe you can upload a pic later. If they're decent I'm in the market for 12 of these. If they guaranteed them with 30-day free returns that would also convince me to buy. But as it is I'll probably go with one of the large ~300 Ah battery options that are thoroughly reviewed.
Original Poster
Nov 29, 2025 5:06 AM
1.8K Comments
Joined Dec 2010
deeznutz206
Original Poster
Nov 29, 2025 5:06 AM
1.8K Comments
Quote from luddite_cyborg View quoted comment :
If they even had a photo of the internals it would help a lot (a video review by anyone would be best). But right now it's a closed box, who knows what the build quality is like; maybe they skimped a lot in order to get the price down. Not sure if the cells are good, page says they're BYD "grade A" (marketing fluff) but that's not enough info. They don't have free returns without that add-on insurance so it's a risky buy. Looks like you ordered already so maybe you can upload a pic later. If they're decent I'm in the market for 12 of these. If they guaranteed them with 30-day free returns that would also convince me to buy. But as it is I'll probably go with one of the large ~300 Ah battery options that are thoroughly reviewed.
Let me contact CS and see if they have any pics of the internals since they probably know me by now after all my messages to them Big Grin. Also especially since this might result in 12 units of this server rack being sold. Might not get a reply until Sunday night our time due to time difference.

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Pro
Nov 29, 2025 5:13 AM
1K Comments
Joined May 2012
luddite_cyborg
Pro
Nov 29, 2025 5:13 AM
1K Comments
Quote from deeznutz206 View quoted comment :
Let me contact CS and see if they have any pics of the internals since they probably know me by now after all my messages to them Big Grin. Also especially since this might result in 12 units of this server rack being sold. Might not get a reply until Sunday night our time due to time difference.
I can wait until then, probably won't make final decision till Tues night

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