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Description
Sync Energy SEFB512G4 Flow 4 Batteries 20.5kWSync Energy SEFB512G4 Flow Battery Stack 20. 48kWh (4 Modules) Product Description The Sync Energy Flow 20. 48kWh Battery Stack is a high capacity, modular energy storage solution designed for residential and light commercial applications with substantial energy requirements. Supplied with four 5. 12kWh LiFePO battery modules, it delivers powerful, scalable storage that can be expanded as energy demands grow. Featuring a 90% depth of discharge, IP65
Sync Energy SEFB512G4 Flow Battery Stack – 20.48kWh (4 Modules)
Product Description
The Sync Energy Flow 20.48kWh Battery Stack is a high-capacity, modular energy storage solution designed for residential and light commercial applications with substantial energy requirements. Supplied with four 5.12kWh LiFePO₄ battery modules, it delivers powerful, scalable storage that can be expanded as energy demands grow.
Featuring a 90% depth of discharge, IP65 ingress protection and integrated fire suppression, the Flow battery system offers safe, reliable performance in demanding environments. Its modular design supports total storage capacities of up to 35.84kWh when combined with additional stacks.
Designed for fast, professional installation, the Flow system includes plug-and-play battery connections, adjustable feet for accurate positioning and concealed wiring for a clean, discreet finish. Monitoring and optimisation are managed via the Sync Energy app, providing real-time insight into battery performance and energy usage.
Key Features & Benefits
- Modular, stackable battery storage system
- Supplied with 4 × 5.12kWh LiFePO₄ battery modules (20.48kWh total)
- Scalable storage capacity up to 35.84kWh
- 90% depth of discharge for maximum usable energy
- Integrated fire suppression for enhanced safety
- Integrated heating system for charging below 5°C
- IP65 ingress protection and IK10 impact resistance
- Plug-and-play battery connections for fast installation
- Remote monitoring and control via the Sync Energy app
- Silent operation (0 dB)
Dimensions & Weight
- Dimensions (HxWxD): 2400 × 245 × 347 mm
- Total Weight: 204.4 kg
Installation Details
- Installation method: Ground mounted
- Wall mounting bracket supplied
- Adjustable feet for level installation
- Hinged access door for tidy wiring and isolator access
- Two selective cable entry points
- Fixing screws supplied
Construction & Appearance
- Steel housing with galvanised front finish
- Painted polycarbonate base
- Anthracite Grey finish (RAL 7016)
- Four-module configuration
- Green LED power indicator
- UV stable for long-term outdoor installation
Technical Specifications
- IP rating: IP65
- IK rating: IK10
- Operating temperature range: -25°C to +55°C
- Smart monitoring via Sync Energy app
Battery Information
- Battery included: Yes (4 modules supplied)
- Battery type: LiFePO₄ (Lithium Iron Phosphate)
- Battery capacity per module: 5.12kWh
- Total battery capacity supplied: 20.48kWh
- Battery weight per module: 51.1 kg
- Depth of discharge: 90%
Compliance
- WEEE group: 1 (Large household appliances)
Downloads & Resources
Data Sheet:
View the Data Sheet
Instruction Manual:
View the Instruction Manual
Sync Energy Flow Catalogue:
View the Catalogue
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1530 reviews
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Product Reviews
★★★★★ 4
Genuinely bummed that these great balls can’t stand up against my Chloè.
Size: Medium
I love all the Chuckit brand of balls. I found that the Strabo and glow balls in the Chuckit line are the softest, and as such, don't last as long as the rest of Chuckit line of balls. Having said that, they do last longer than than every other brand I've tried (and I do believe I’ve tried every brand available on the market today.)
The strato balls do bounce higher than any of the other balls in the Chuckit line. They really are a good value.
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Reviewed in the United States on March 30, 2022
★★★★★ 5
Great dog balls at a great price
Size: Medium
The balls are a favorite for my dog. I could have done without the hole through the middle because I don't do treats in balls anyway. My dog loves balls for their own merit. I needed replacement balls for my Nerf Dog Ball launcher. It seems the originals have disappeared from the market. I took a chance because the price is right and this Chuck-it ball works very well so we're liking this ball a lot. So far my Dachsund, who can destroy a tennis ball (the kind they are selling as Nerf Dog replacements) in 3 minutes has not done any damage to this one so that's a win. I recommend this as a much better ball than the fuzzy tennis balls. I like the colors too since many dog toys are green (which gets lost in the lawn, etc.) or red (even though dogs have red/green color blindness. Blue and orange are good and pretty easy to find. I liked these well enough that this set was my second purchase so I will have spares in case the others are lost.
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Reviewed in the United States on May 21, 2023
★★★★★ 5
My Baby loves his new baby!
Size: Medium, Size: Medium
Finally! A ball my 107 lb. pitty/pointer mix can’t destroy. He has torn up every single “indestructible” toy in a day or so until now. He peels fabric and fur off non-rubber toys. He is a 4-legged shredder. I’ve added pictures of him for a size reference of my dog versus this product. I know I had wanted that when shopping for this item.
This ball is now his beloved “baby.” He goes absolutely insane looking for it, chewing it, chasing it, and even sleeping with it. He won’t rest unless he knows exactly where it is. It is his only toy, and he is good with that. After getting this home, I tried giving him other choices, but he won’t touch them.
I was worried that he would rip it apart by putting his teeth in the holes, but so far, not a scratch. It is soft enough to collapse just enough to keep it from cracking when his jaws crush it but not so soft that he can rip it to sheds. The holes are large enough to prevent a suction or vacuum effect on his tongue or mouth. For his size jaws, it is a perfect fit. Other dogs might have problems with suction or be able to get their teeth in those holes and rip it apart. Who knows?
The older version of the Chuckit squeaky ball was his favorite for the year and a half he had it, but the way they make them now, he peels off the orange triangle in hours flat, the squeaker falls out (choking hazard), and then he rips it apart.
I’m going to stock up on these. I can’t imagine how crazy he will be if they ever stop production or change the materials.
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Reviewed in the United States on May 9, 2019
★★★★★ 5
This is a great ball for high energy dogs.
Color: Blue
I have a Belgian Malinois, so you can imagine the Maligator jaws. Just opened this today and let her play with it indoors. She LOVES IT. It wore her out and it’s a toy she can really stay focused on without needing me to throw or roll for her. It moves on its own! I supervised her play. I was hoping it was too big to get under the couch, but no. It goes right under it. I had to block off the gap so I didn’t have to keep getting it out from under for her. The outter “shell” is very durable! When she had resting moments, she chewed it pretty good - I could hear the material squeaking against her teeth. I was worried she was tearing it up, but nope! Not a mark on it. It’s easy to set up and operate. It needed charging before play. After hours of play, she was able to somehow unscrew the outter shell. This concerned me bc the smaller, inner ball mechanism came out but I saw it right away and was able to put it back together. So, make sure it’s screwed together tightly (which I thought I had done without breaking it) and check it from time to time to make sure it hasn’t loosened. This is a great ball for her incredible high energy drive. It gives her the work and fun play she needs to get tired, which I love. This toy is on the expensive end, but so far it’s worth it. Now we’ll see how long it lasts!
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Love love it
Color: Blue
Best dog toy ever. I have a 1 year old boxer who is full of energy (understatement). This ball has provided more entertainment for us both than any dog toy I’ve ever purchased. Charge holds well and has a very resilient shell. I love it. Worth the price.
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Reviewed in the United States on May 23, 2026