Battle Born 50Ah 24V LiFePO4 Battery

Name: Battle Born 50Ah 24V LiFePO4 Battery
SKU: BB5024

Versus

A 1,280 Wh, 24 V LiFePO4 battery in a 31 lb Group 27 or 31 size case, for 24 V trolling motors, boats and vans.

$879

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SKU: BB5024

Usability

3.9 out of 10

Capacity51,280 Wh from 25.6 V times 50 Ah, on the 1,250 to 1,799 Wh rung

Efficiency241.3 Wh per pound at 31 lb

Operating Range550 A maximum discharge on the spec table, 1.0C on 50 Ah

Conflict: the manual's BMS section rates 60 A continuous, 1.2C
Surge: 100 A for 30 seconds, half a second above that
Charging: 25 A maximum, 0.5C recommended
Temperature: discharges from -4°F to 135°F; no charging below 32°F

Lifespan43,000 to 5,000 cycles at 100 percent depth; low figure scored, no end point published

Brand note: Battle Born's blog says most packs keep 75 to 80 percent of capacity as they age

Features2Low-temperature cut-off only; no heater, Bluetooth or IP rating

Series: up to 48 V, so two batteries at most

Verification2cell-level UL 1642 claim only; no pack record in any directory

Manual: cells UL Recognized to UL 1642 (cell level)
Other directories: Intertek, LabTest no record for this model
Other directories: UL Product iQ, TÜV Rheinland, CEC no record

Warranty & Support710 years; full replacement for 8, then a 30 percent discount in years 9 and 10

Shipping: buyer pays to ship a battery to Battle Born for inspection

Price

List: $879.00 at battlebornbatteries.com

Summary

Native 24 V drop-in, light on features

What it is: a 24 V, 50 Ah LiFePO4 battery sized for Group 27 and Group 31 trays in 24 V systems
The trade-off: native 24 V in one light case, but a low charge current and almost no features beyond a cold cut-off
Conflict: the spec table gives 50 A discharge and the BMS section 60 A; both score the same
Look elsewhere for: cold-weather charging, monitoring or a 48 V bank of more than two

Strengths

Native 24 V from one battery
Drop-in fit for common group-size trays
Mounts in any orientation
Blocks charging below freezing to protect cells
Unlimited parallel banks

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Drawbacks

Heavy for its capacity
Charge current capped at half its capacity
No heater for charging below freezing
No Bluetooth or communication port
Only two can be wired in series
Last two warranty years are a discountnot a replacement

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Social score

4.5 out of 10

RedditBrand-level3 out of 10

Overall: Reddit threads on Battle Born since December 2025 are mostly negative and centre on the 100Ah battery's positive terminal
Terminal: r/overlanding and r/sailing posts relayed Will Prowse's videos of the 100Ah positive terminal overheating under load (December 2025); Prowse is sued by Dragonfly and is not independent
Response: an r/batteries post quoted Battle Born calling the terminal's aluminum nut a purpose-built thermal failsafe, and owners there called it a design flaw (December 2025)
Suit: r/SolarDIY and r/RVLiving threads on Dragonfly's trade libel suit against Prowse ran largely critical of the brand (June 2026)

Google4 out of 10

Liked

Ten ran five years with zero issues (September 2025)
Two still cycling after nearly four years (February 2026)

Complaints

Two or three of a dozen failed in a 48 V bank (September 2025)
Measured 58 to 94 percent of rated capacity (February 2026)
Slightly loose internal bus-bar bolts (February 2026)

Read the full summary

Failures: on DIY Solar Forum an owner of a dozen BB5024s in a 48 V bank came back from six months away to two or three bad batteries, one deformed and one reading 9 V, just past warranty (September 2025)
Long service: another owner reports ten in a 48 V bank running five years with zero issues, charging each one alone every six months (September 2025)
Still cycling: an owner of two in parallel for nearly four years found no case damage on inspection (February 2026)
Teardown: on Trawler Forum a site-team member measured units from about 58 to 94 percent of the 50 Ah rating, about 88 on average, and found slightly loose bus-bar bolts but no overheating (February 2026)
Tie: his firm sells replacement batteries and says many of its sales replace Battle Born units

YouTubeBrand-level3 out of 10

Will Prowse: tore down Battle Born 100Ah batteries and filmed the positive terminal overheating, then a new unit he bought melting after about 30 cycles (December 2025 to early 2026)
Ties: Dragonfly sued him for trade libel in June 2026 and alleges he earned over $200,000 in Battle Born affiliate fees until October 2025, so his videos are not independent in either direction
Earlier: his teardown of the same 100Ah design about six years before had praised it

AmazonBrand-level8 out of 10

Listing: Amazon.com sells Battle Born's 100Ah 12V battery (B06XX197GJ), a file shared by the standard and GC2 cases, rated 4.6 from 831 ratings (October 2026)
Split: 84 percent five-star against 7 percent one-star
Reviews: the top reviews, dated 2018 to 2024, praise a free warranty replacement and the terminal posts; the 270Ah listing returns a 404

User reviewsNot scored

The retailer pool is blank: no US retailer listing of a Battle Born product shows ten native product reviews.

Trustpilot

Trustpilot rates battlebornbatteries.com 2.8 from 3 reviews on an unclaimed page with no invited reviews, two of them one-star and the latest from May 2025 (October 2026).

Track record

The BBB rates Dragonfly Energy, which lists Battle Born Batteries as an alternate name, F on 4 complaints in three years, not accredited (October 2026).
No CPSC or Health Canada recall names Battle Born or Dragonfly Energy, searched in October 2026.
In June 2026 Dragonfly Energy filed a trade libel suit in Nevada against reviewer Will Prowse over his Battle Born videos; it was unresolved in October 2026.
A consumer class action against Dragonfly Energy was moved to federal court in California in April 2026, unresolved in October 2026.

Not countedExcluded

Not counted in any pool: battlebornbatteries.com's own reviews and AI review summary, and the Battle Born and Dragonfly Energy YouTube channels and Facebook groups.
Also not counted: Battle Born staff posts, any brand-run subreddit, dealer and installer pages, and ambassador and affiliate programmes such as Explorist.life.

Summary

Brand-level

2.8 on Trustpilot, an F from the BBB, no recalls

Specs

Capacity1,000-1,499 Wh
AC OutputNot applicable
System Voltage24 V
Panel PowerNot applicable
Charge CurrentNot applicable
Safety ListingClaimed only
Cell TypeNot applicable
Low-Temp ChargingLow-temperature cut-off
Warranty10 Years
MonitoringNone
Weight31.0 lb

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At a glance

12.76 x 6.86 x 8.95 in
Brass flag terminals
Stainless bolt kit in box

Company

Battle Born Batteries is the brand of Dragonfly Energy Holdings Corp. of Reno, Nevada (Nasdaq: DFLI), a company founded in 2012.
Dragonfly Energy acquired the Dakota Lithium brand's assets in July 2026 and runs that brand separately from Battle Born.

Where it sells

It sells with a cart at battlebornbatteries.com, through dealers and installers on its dealer locator, and on Amazon US, where Amazon.com sells its 100Ah battery.

Description

The Battle Born BB5024 is a 24 V, 50 Ah lithium iron phosphate battery of cylindrical cells, storing 1,280 Wh at 25.6 V nominal, sized as a drop-in for Group 27 and Group 31 trays.

Its spec table gives a 50 A maximum discharge current and 100 A for 30 seconds, while the manual's BMS section rates it at 60 A continuous; maximum charge is 25 A, with 0.5C recommended. Charging runs at 28.4 to 29.2 V with a 26.8 to 27.6 V float, and the BMS blocks charging below 32°F while discharging down to -4°F.

Battle Born rates it for 3,000 to 5,000 cycles at 100 percent depth of discharge. It measures 12.76 x 6.86 x 8.95 in, weighs 31 lb and has brass flag terminals in a sealed, water-resistant ABS case that mounts in any orientation.

Two can be wired in series for 48 V, with no limit in parallel, and it has no Bluetooth or communication port. The box holds the battery and a stainless finishing hardware kit of four bolts, four washers and two Nylok nuts. The heated version is its own model.

Researched and edited by Michael Ambrose · Unbroken Ads LLC · How we score