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forum threadWoodSlayR posted Yesterday 11:51 PM
forum threadWoodSlayR posted Yesterday 11:51 PM

Dumfume 12V 600Ah Deep Cycle Rechargeable LiFePO4 Battery 5 $529.15

$529

$629

15% off
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use code DUM05 for 5% off for 529.15 total and free shipping.

For what it's worth, the reviews and teardowns of this battery on YouTube all check out good for build quality and tests well over rated capacity. Also, even though it's not advertised as a small form factor, its using the new mini size standard and is exactly the size of 2 mini form factor 300Ah batteries from other brands.


Massive Energy Storage – 12V 600Ah capacity with 7680Wh energy output.
Ultra-Long Lifespan – Up to 15,000 Cycles at 60% DOD, 8000 Cycles at 80% DOD, 4000 Cycles at 100% DOD.
200A Built-in BMS – Full protection system with Grade A LiFePO4 cells.
Lightweight Design – Only 111 lbs, about half the weight of equivalent lead-acid batteries.
All-Weather Performance – Works reliably from -20°C to 60°C, with low temperature cut-off.
Fast AC Charging – AC to 12V charging system for efficient full charge.
Expandable System – Supports up to 4S4P connections for larger setups.
Wide Applications – Ideal for RVs, solar energy systems, marine, off-grid homes, and backup power.
Certified & Guaranteed – 5-year warranty, UL, CE, FCC, UN38.3, and RoHS certified.

https://dumfume.cn/collections/cl...o4-battery
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About the Poster
use code DUM05 for 5% off for 529.15 total and free shipping.

For what it's worth, the reviews and teardowns of this battery on YouTube all check out good for build quality and tests well over rated capacity. Also, even though it's not advertised as a small form factor, its using the new mini size standard and is exactly the size of 2 mini form factor 300Ah batteries from other brands.


Massive Energy Storage – 12V 600Ah capacity with 7680Wh energy output.
Ultra-Long Lifespan – Up to 15,000 Cycles at 60% DOD, 8000 Cycles at 80% DOD, 4000 Cycles at 100% DOD.
200A Built-in BMS – Full protection system with Grade A LiFePO4 cells.
Lightweight Design – Only 111 lbs, about half the weight of equivalent lead-acid batteries.
All-Weather Performance – Works reliably from -20°C to 60°C, with low temperature cut-off.
Fast AC Charging – AC to 12V charging system for efficient full charge.
Expandable System – Supports up to 4S4P connections for larger setups.
Wide Applications – Ideal for RVs, solar energy systems, marine, off-grid homes, and backup power.
Certified & Guaranteed – 5-year warranty, UL, CE, FCC, UN38.3, and RoHS certified.

https://dumfume.cn/collections/cl...o4-battery

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Today 12:05 AM
1,740 Posts
Joined Dec 2010
deeznutz206Today 12:05 AM
1,740 Posts
From the pictures looks like they use cylindrical cells instead of prismatic.
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Today 01:40 AM
893 Posts
Joined Jul 2019
WoodSlayRToday 01:40 AM
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Quote from deeznutz206 :
From the pictures looks like they use cylindrical cells instead of prismatic.
In the teardowns I've seen online, they are prismatics.
Today 05:50 PM
129 Posts
Joined Aug 2009
codeoptimistToday 05:50 PM
129 Posts
Under $70/kWh is one of the lowest prices I've seen yet.
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Today 05:56 PM
893 Posts
Joined Jul 2019
WoodSlayRToday 05:56 PM
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893 Posts
Quote from codeoptimist :
Under $70/kWh is one of the lowest prices I've seen yet.
Indeed.Under $70/kWh or just .88 cents per Ah is crazy cheap. And for what it's worth, Will prowse does a full test, benchmark, and teardown review on the smaller model/same brand and found it to be one of the very best batteries hes tested. On Par with Li-Time & Li-time 320ah batteries which is just half this capacity cost 6 to 7 hundred dollars
https://www.youtube.com/watch?v=9gLIv7wa01Q
Last edited by WoodSlayR January 9, 2026 at 11:38 AM.

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