Can it really run four in series and four in parallel?

Yes, the battery is rated for 4P4S configuration, which gives 48V and up to 400Ah, or about 20.48 kWh. Every battery in the bank should be the same model, age and charge level, and the wiring should be balanced.

What does the 100A BMS mean for my loads?

The BMS allows up to 100A continuous discharge, roughly 1,200W at 12V. Inverters and motors that pull more than that in a surge will trip the protection.

Will it fit where my Group 31 battery was?

It uses the Group 31 case size, so it usually drops into the same tray and hold-down. Check the terminal layout and height against your old battery before ordering.

How does low-temperature cutoff work?

The BMS blocks charging when the cells are near or below freezing, which prevents lithium plating damage. Discharging still works in the cold, and charging resumes once the pack warms up.

Is it worth it over a lead-acid deep-cycle battery?

It delivers far more usable cycles and weighs much less, and it can be discharged deeper without damage. The trade-off is a higher upfront outlay and a BMS that can shut off on very large loads.

What can I run on a single 100Ah battery?

At 12V it stores about 1.2 kWh, enough for lights, a fridge, fans and electronics in a small RV or cabin. Larger inverters and air conditioning need several batteries in parallel.

ENERGYCORD 12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle

Best price now

$126.00at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

ENERGYCORD 12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle

Best price now

$126.00at WalmartChecked Nov 12

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $126.00 at Walmart on Nov 12.

Our take on the ENERGYCORD 12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle

The ENERGYCORD 12V 100Ah is a Group 31 lithium iron phosphate deep-cycle battery with a built-in 100A battery management system. It is rated for 15,000-plus deep cycles and can be wired four in series and four in parallel for up to 20.48 kWh of storage. Low-temperature cutoff protects it from charging below freezing, and it weighs far less than a comparable lead-acid battery. It suits RV, trolling motor, marine and off-grid solar setups where cycle life and weight matter more than the lowest upfront outlay. Against premium brands it trades brand history and app monitoring for a higher cycle rating and a higher continuous discharge limit than many 100Ah rivals.

Best forRV and camper house battery banksTrolling motor and marine deep-cycle useOff-grid solar storageOwners replacing Group 31 lead-acid batteries

Pros

Built-in 100A BMS limits overcharge, over-discharge and short circuits
15,000-plus cycle rating is high for a 100Ah LiFePO4 pack
Low-temperature cutoff blocks charging below freezing
4P4S wiring allows up to 20.48 kWh in one bank
Group 31 footprint drops into many lead-acid trays
Much lighter than an equivalent lead-acid battery

Cons

No Bluetooth or app monitoring on the battery
Cold-weather charging stops until the pack warms up
Series-parallel banks need matched batteries and careful wiring
Limited brand track record against established lithium makers

ENERGYCORD 12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle prices at every store

WalmartNew
In stockSold by MZBpowerReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
$126.00Free shippingChecked Nov 12
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About the ENERGYCORD 12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle

This is a 12V 100Ah lithium iron phosphate (LiFePO4) deep cycle battery in the Group 31 size. It has a built-in 100A battery management system (BMS) and a low-temperature cutoff. The battery is lightweight.

It is rated for more than 15,000 deep cycles. Several batteries can be connected in a 4P4S arrangement (four in parallel, four in series) for a system of up to 20.48kWh. It is intended for RVs, trolling motors, solar systems, marine use and off-grid power.

Voltage: 12V
Capacity: 100Ah
Chemistry: LiFePO4 (lithium iron phosphate)
Battery type: Deep cycle
Group size: Group 31
BMS: Built-in 100A
Cycle life: 15,000+ deep cycles
Expansion: 4P4S, up to 20.48kWh
Protection: Low-temperature cutoff
Uses: RV, trolling motor, solar, marine, off-grid

Questions and answers

Can it really run four in series and four in parallel?: Yes, the battery is rated for 4P4S configuration, which gives 48V and up to 400Ah, or about 20.48 kWh. Every battery in the bank should be the same model, age and charge level, and the wiring should be balanced.
What does the 100A BMS mean for my loads?: The BMS allows up to 100A continuous discharge, roughly 1,200W at 12V. Inverters and motors that pull more than that in a surge will trip the protection.
Will it fit where my Group 31 battery was?: It uses the Group 31 case size, so it usually drops into the same tray and hold-down. Check the terminal layout and height against your old battery before ordering.
How does low-temperature cutoff work?: The BMS blocks charging when the cells are near or below freezing, which prevents lithium plating damage. Discharging still works in the cold, and charging resumes once the pack warms up.
Is it worth it over a lead-acid deep-cycle battery?: It delivers far more usable cycles and weighs much less, and it can be discharged deeper without damage. The trade-off is a higher upfront outlay and a BMS that can shut off on very large loads.
What can I run on a single 100Ah battery?: At 12V it stores about 1.2 kWh, enough for lights, a fridge, fans and electronics in a small RV or cabin. Larger inverters and air conditioning need several batteries in parallel.
Where is the ENERGYCORD 12V 100Ah LiFePO4 Lithium Battery Group 31 Deep Cycle cheapest?: At Walmart, for $126.00, as of our latest check.