Power Queen 12.8V 100Ah Low-Temp LiFePO4 Battery - Trolling Motor

In this review the Power Queen 12.8V 100Ah Low-Temp LiFePO4 battery is evaluated for anglers, RV owners, and small off-grid users who need reliable deep-cycle power in cold conditions; the single biggest reason to buy is its combination of a high-quality Grade A cell pack and an upgraded 100A BMS with a low temperature cut-off that protects the battery when charging below 32F. The reviewer found it particularly suited to powering 12V-36V trolling motors and marine electronics while delivering a long usable life compared with lead-acid alternatives.

Key Features

• Upgraded 100A BMS: The built-in 100A battery management system tolerates short bursts up to 500A and protects against overloads for reliable trolling motor starts and heavy loads.
• Low temperature cut-off: Charging is automatically suspended when cell temperature falls below 32F and resumes once warm, reducing cold-weather damage risk.
• Grade A LiFePO4 cells: High-quality cells provide long life and deep-cycle performance with up to 15000+ cycles at reduced depths of discharge.
• Expandable capacity: The 12.8V 100Ah module stacks to larger banks (up to 51.2V and massive kWh) for RV or solar setups without losing individual battery benefits.
• Lightweight design: At roughly 22 lb it is much lighter than comparable lead-acid batteries, making installation and handling easier on boats and in RVs.

Who It's For

The battery is well suited for anglers running 12V-36V trolling motors in the 30-120 lb thrust range and for those who also need to run fish finders, GPS, sonar and small onboard electronics; its low temperature protection makes it a good choice for colder-season fishing or unheated storage. RV owners and small off-grid users who want a compact, long-life energy pack that pairs with solar charge controllers will also appreciate the improved cycle life and lighter weight.

It is not intended as a starter battery for engines or heavy-start applications like golf cart motors, and users who need very high continuous discharge for long periods should evaluate continuous current needs versus the BMS rating. Also, installers should follow terminal attachment guidance when using thin terminal plates or clamps to avoid loosening or overheating.

Pros & Cons

Pros

• Long lifespan and cycle life from Grade A LiFePO4 cells provide excellent long-term value.
• Reliable protection with an upgraded 100A BMS that handles overloads and resumes automatically after faults.
• Low temperature cut-off preserves battery health when charging in cold environments.
• Lightweight and expandable for multi-battery 48V or larger battery bank configurations.

Cons

• Not designed as a starter battery for engines; unsuitable for applications requiring high continuous start currents.
• Charging is inhibited below 32F which is protective but may delay recharging in very cold conditions.

Specifications

Nominal voltage	12.8V
Capacity	100Ah (1280Wh)
BMS rating	100A continuous, 500A 1s pulse
Cell type	Grade A LiFePO4
Cold charge cut-off	Charging disabled below 32F
Approximate weight	About 22 lb
Recommended charge	14.6V, 20A (approx. 5 hrs)

Our Verdict

The Power Queen 12.8V 100Ah low-temp LiFePO4 battery is a sensible buy for fishermen, RV users, and small solar systems who need dependable deep-cycle power and cold-weather charging protection; its upgraded 100A BMS, long cycle life, and light weight make it a better long-term value than lead-acid rivals for these use cases. Buyers who need a starting battery or immediate charging at subfreezing temperatures should consider alternate solutions.

Frequently Asked Questions

Can this battery run a 36V trolling motor?
Yes; the battery can be used in systems that support 12V-36V trolling motors when configured appropriately or used in banks, but check continuous current requirements against the BMS rating.

Will it charge in cold weather?
The built-in low temperature sensor prevents charging below 32F to protect cells; charging will resume automatically once cell temperature rises above that threshold.

How long will it last compared with lead-acid?
With Grade A LiFePO4 cells it offers a significantly longer lifespan and far more cycles than typical lead-acid batteries, translating to lower replacement frequency and cost over time.