How does this compare with a lead-acid battery of the same capacity?

It gives far more usable capacity, since lithium can be discharged deeply without damage, and it weighs much less. It also lasts many more cycles and needs no watering or equalizing.

Can I wire several together for a 48V system?

Yes. The battery supports series and parallel connections, so four in series makes 48V and parallel strings add capacity. Match voltage, age and state of charge across units.

What can a 3840Wh battery run?

Roughly a day of moderate RV loads, a trolling motor for a long outing, or essential home circuits during an outage. Actual runtime depends on inverter efficiency and load size.

Does it need a special charger?

Yes. Use a LiFePO4-compatible charger or solar charge controller with the correct charge profile. A lead-acid charger can leave it undercharged or overcharge it.

Is it safe to install inside an RV or cabin?

The sealed design releases no acid fumes or gases, so it can go in living spaces. Mount it securely, keep it dry and leave some ventilation around it.

Does it have Bluetooth monitoring?

No. There is no app or Bluetooth readout, so you check state of charge through a shunt monitor or your charge controller.

What do buyers say about the POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery?

Rated 5 out of 5 from 1 ratings.

POERUNI.

POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery

Best price now

$319.55at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

POERUNI.

POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery

Best price now

$319.55at WalmartChecked Nov 11

Prices are checked against each store and labelled with when.

Visit Walmart

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Price facts

Last seen at $319.55 at Walmart on Nov 11.

Our take on the POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery

The POERUNI 12V 300Ah is a lithium iron phosphate deep-cycle battery rated at 3840Wh, built with Grade A cells and an integrated BMS. It is sealed, maintenance-free and lighter than a lead-acid bank of similar capacity, and it can be wired in series or parallel to build larger 12V, 24V or 48V systems. It suits off-grid solar, RV and marine house banks, trolling motors and home backup. Against lead-acid rivals it wins on usable capacity, weight and cycle life; against premium lithium brands it is a budget option, and its 2000+ cycle rating is lower than the 3000 to 5000 cycles the big names claim.

Best forOff-grid solar storageRV and camper house powerTrolling motor and marine useHome emergency backup

Pros

3840Wh from a single 12V battery
Grade A LiFePO4 cells with integrated BMS
Series and parallel wiring for larger banks
Sealed and maintenance-free
Lighter than an equivalent lead-acid bank

Cons

2000+ cycle rating trails premium lithium brands
No Bluetooth or app monitoring
BMS protection can trip on high inrush loads
Cold-weather charging needs care, as with any LiFePO4

POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery prices at every store

WalmartNew
In stockSold by POERUNI brand storeReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$319.55Free shippingChecked Nov 11
Visit Walmart

About the POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery

The POERUNI 12V 300Ah is a LiFePO4 (lithium iron phosphate) deep cycle battery with 3840Wh of energy storage capacity. It uses Grade A lithium cells and has an integrated intelligent BMS for safety protection.

The battery is rated for 2000+ deep cycles. It has a lightweight, sealed design that needs no maintenance. Multiple units can be connected in series and parallel to build larger battery banks.

It is compatible with standard 12V power equipment. Uses include off-grid solar power systems, household emergency backup, RV campers, boats and trolling motors.

Voltage: 12V
Capacity: 300Ah
Energy: 3840Wh
Chemistry: LiFePO4 (lithium iron phosphate)
Cycle life: 2000+ deep cycles
Protection: Integrated intelligent BMS
Cells: Grade A lithium cells
Expandability: Supports series and parallel connection
Maintenance: None required, sealed design
Compatibility: Standard 12V power equipment
Color: Black

Specifications

color: BlackSource

Questions and answers

How does this compare with a lead-acid battery of the same capacity?: It gives far more usable capacity, since lithium can be discharged deeply without damage, and it weighs much less. It also lasts many more cycles and needs no watering or equalizing.
Can I wire several together for a 48V system?: Yes. The battery supports series and parallel connections, so four in series makes 48V and parallel strings add capacity. Match voltage, age and state of charge across units.
What can a 3840Wh battery run?: Roughly a day of moderate RV loads, a trolling motor for a long outing, or essential home circuits during an outage. Actual runtime depends on inverter efficiency and load size.
Does it need a special charger?: Yes. Use a LiFePO4-compatible charger or solar charge controller with the correct charge profile. A lead-acid charger can leave it undercharged or overcharge it.
Is it safe to install inside an RV or cabin?: The sealed design releases no acid fumes or gases, so it can go in living spaces. Mount it securely, keep it dry and leave some ventilation around it.
Does it have Bluetooth monitoring?: No. There is no app or Bluetooth readout, so you check state of charge through a shunt monitor or your charge controller.
Where is the POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery cheapest?: At Walmart, for $319.55, as of our latest check.
What do buyers say about the POERUNI 12V 300Ah 3840Wh LiFePO4 Deep Cycle Battery?: Rated 5 out of 5 from 1 ratings.