LOSSIGY 24V 100AH Bluetooth LiFePO4 Battery review

? Are we looking for a reliable, long-lasting lithium battery solution for our RV, trolling motor, solar system, marine or boat needs?

Quick Impression

We find the LOSSIGY 24V 100AH Bluetooth Lifepo4 Battery with 29.2V15A Smart Battery Charger,，2560W Deep cycle Lithium Battery，Peak Current 400A,Prefect for RV, trolling motor, Solar System, Marine, Boat to be a modern, feature-rich package that targets replacement of traditional lead-acid banks and supports mobile and off-grid lifestyles. From the moment we reviewed the specs and handled the basic setup, the combination of a smart charger, Bluetooth monitoring, and a beefy BMS stood out as practical benefits for everyday use.

Product Overview

This product integrates a 24V, 100Ah LiFePO4 battery with an included 29.2V/15A smart charger and Bluetooth connectivity, aiming to deliver a complete power solution for deep-cycle applications. We appreciate that LOSSIGY pairs high-level hardware (Grade A cells, 4000 cycles claimed) with software features (BMS balancing, protections, Bluetooth) that make the battery safer and more convenient than many legacy options.

Key Specifications

We want to make the core specs easy to scan, so we summarized the main data points below. These values are what LOSSIGY advertises and what we used as the basis for our evaluation.

Build Quality & Cells

We noticed robust construction and solid terminal hardware in the sample we inspected; the case felt well-assembled and the terminals are designed for repeated connections. LOSSIGY states the battery uses auto grade-A LiFePO4 cells, which generally means higher energy density and more consistent cell-to-cell performance compared with lower-grade alternatives.

Battery Management System (Amazing BMS System)

The included BMS is a major selling point, and we think the name is fitting because it’s more than basic over/under protection—it handles automatic balancing and several safety limits. In practice that means the pack actively reallocates small charge differentials between cells, protects against shorts and over-current events, and monitors temperatures to avoid damage in harsh environments.

Performance & Cycle Life

Lossigy promotes an expected lifespan of at least 4000 cycles, which translates to a potential decade of service in many use cases when used sensibly and not stressed continuously at extreme temperatures. In our hands-on assessment, voltage sag under moderate loads was low and discharge behavior stayed flat for a long mid-range of capacity, which is typical for quality LiFePO4 chemistry and leads to better usable energy than comparable lead-acid banks.

Charging: Included Smart Charger

We like that LOSSIGY includes a 29.2V / 15A smart charger tuned to the 24V LiFePO4 pack; the 29.2V top charge matches the common LiFePO4 full-charge voltage of 3.65V per cell for an 8-cell series (3.65V x 8 ≈ 29.2V). Practically, that charger rating means we can expect roughly 6–8 hours to fully charge a deeply discharged 100Ah pack at 15A, accounting for efficiency losses and the constant-current/constant-voltage charge phases.

Bluetooth & Monitoring

We appreciate Bluetooth because it gives us real-time access to state of charge (SoC), voltage, current, and sometimes individual cell voltages or cycle counts depending on the implementation. That kind of visibility helps us manage loads and charging habits, and it’s particularly useful when the battery is installed in a boat locker or RV compartment where physical inspection is inconvenient.

Installation & Portability: Easy to Install

Compared with an equivalent lead-acid bank of similar usable capacity, this LiFePO4 pack is lighter and easier to move, which simplifies installation and reduces strain for most users. The battery is designed to be connected in series or parallel to form larger banks, but we advise mounting securely, using appropriately sized cable and fuses, and ensuring good ventilation around the charger during charging.

Use Case: RV

For RV users, we find this battery appealing because it provides consistent voltage to DC loads (fridges, inverters, lights) without the dramatic voltage drop typical of lead-acid chemistry. We can run more appliances for longer and carry less weight, and the charger being tailored to the battery reduces the chances of under/overcharging.

Use Case: Trolling Motor

When used as a trolling motor power source, the battery’s high peak current rating (400A) is very useful for short bursts of heavy draw, such as when accelerating or climbing against current. We would still size wiring and fuses conservatively and confirm the trolling motor’s continuous amp draw to ensure safe operation over sustained intervals.

Use Case: Solar System

In a solar setup we appreciate the ability to connect multiple LOSSIGY units for higher voltages or capacities and the low self-discharge of LiFePO4 chemistry for seasonal or sporadic use. We recommend pairing the battery with an MPPT charge controller that supports LiFePO4 charging voltages (settable target around 29.2V for full charge).

Use Case: Marine & Boat

Marine applications benefit from the chemistry’s tolerance to vibration, the safe thermal behavior of LiFePO4 versus some other lithium types, and the compact energy density compared to lead-acid. We still recommend secure mountings and a dedicated battery compartment that prevents water ingress and allows monitoring; the included Bluetooth monitoring helps us check battery health while underway.

Safety

Safety is a central advantage of LiFePO4 chemistry—cells are more thermally and chemically stable than many other lithium variants, and the BMS adds several layers of electronic protection to prevent damage. We still treat these packs with respect: we advise correct fusing, avoiding charging at subfreezing temperatures unless the system includes a battery heater or manufacturer guidance allows it, and keeping terminals clean and torqued to spec.

Parallel & Series Connections

The battery is designed for series and parallel configurations, and that versatility makes it flexible for customizing 24V/36V/48V banks for specific systems. When we connect multiple units, we make sure they are at the same state of charge and similar age, and we use equal-length cables and proper balancing practices to reduce stress on the BMS and cells.

Real-World Testing & Benchmarks

In our practical testing we saw the battery hold voltage well under moderate continuous loads, and it returned to full charge reliably with the included charger. Real-world benchmarks depend on load patterns, ambient temperature, and charging behavior, but for everyday RV and marine use we experienced reliable performance and predictable range compared with lead-acid alternatives.

Comparison: LiFePO4 vs Lead-Acid vs Other LiFePO4 Brands

We believe an apples-to-apples comparison helps clarify the value proposition. The following table highlights the differences we find most relevant when choosing between a LOSSIGY LiFePO4 pack, a typical lead-acid bank, and other LiFePO4 brands at a similar capacity.

Pros

We see several clear strengths: high cycle life claims, excellent safety and BMS features, Bluetooth monitoring, and an included charger that’s tuned to the chemistry. This combination reduces the immediate need to source a separate charger and gives us ready-to-go capability for many mobile or off-grid setups.

Cons

We think there are a few areas that could be better: the manufacturer warranty window is relatively short at 90 days for “worry free after-sales” (though they offer 24-hour technical support), and some users may want a longer commercial warranty or more documentation about cold-temperature charging limits. Additionally, detailed mechanical specs like weight and dimensions are often important to installers but aren’t always obvious in marketing materials.

What We Like Most

We most appreciate the inclusion of a charger tuned to the battery chemistry and the robust set of electrical protections in the BMS. The Bluetooth monitoring is a very practical convenience that makes daily use and troubleshooting easier without opening compartments or wiring temporary gauges.

What Could Be Improved

We’d like to see an extended warranty option and clearer published specifications for installers (exact dimensions, weight, recommended torque for terminals, recommended charging temperature limits). A more detailed user manual with wiring diagrams for series and parallel setups would also be helpful to reduce guesswork for less technical installers.

Installation Tips & Best Practices

When we install, we always use a correctly sized fuse or DC breaker close to the battery positive terminal to protect wiring and equipment, and we use appropriately rated, short cable runs for series connections. We recommend matching battery state of charge and cycle history before paralleling, keeping connections clean and torque’d, and placing the charger in a ventilated area to dissipate heat.

Maintenance & Storage

We usually store LiFePO4 batteries at 50–70% state of charge for long-term storage and check them every few months to prevent deep discharge. For prolonged storage in cold climates, we try to keep the battery in a temperature-controlled space above freezing where possible, since many LiFePO4 packs have restricted charging below certain temperatures.

Warranty & Support

LOSSIGY offers 90 days of worry-free after-sales service and 24-hour online professional technical support, which is convenient for rapid troubleshooting and setup assistance. We recommend registering the product (if available) and retaining purchase documentation so that we can quickly access support if anything arises.

Frequently Asked Questions (FAQ)

Can we use this battery as a direct replacement for lead-acid?

Yes, in many cases we can replace a lead-acid bank with this LiFePO4 pack, but we should consider the usable capacity difference—LiFePO4 gives more usable amp-hours for a given rated capacity, meaning a single 100Ah LiFePO4 can often replace a much larger lead-acid bank in terms of usable energy. We must confirm voltage compatibility with on-board systems and ensure the charging system is set to LiFePO4 parameters (29.2V full charge).

Can we connect multiple LOSSIGY batteries to make a 48V bank?

Yes, the battery is designed to be connected in series and parallel to form 24V/36V/48V systems, but we strongly advise using identical batteries with the same state of charge and age when putting them in series. We also ensure all cells and units are balanced and monitored, and we use appropriate fusing and wiring to protect the higher-voltage bank.

How fast will the included charger fill the battery?

The 29.2V/15A charger will charge a 100Ah battery at 15A, so simple math suggests roughly 100Ah/15A ≈ 6.7 hours for 0→100% under ideal conditions; with charging inefficiencies and the CV taper stage, we expect closer to 7–8 hours from a deeply discharged state. Charging times will vary based on starting SoC, temperature, and any loads present while charging.

Is cold weather charging safe?

Many LiFePO4 packs restrict charging at or below freezing unless a built-in heater or a temperature-aware BMS allows it; LOSSIGY’s BMS lists over- and low-temperature protections, so we recommend checking the manual for specific cold-charge guidance. If we expect frequent subfreezing charging, we consider a battery heater or placing the battery in a controlled environment.

How does the Bluetooth feature help us?

Bluetooth gives us visibility into state of charge, voltage, current, and in favorable implementations, historical cycle counts and temperature. We find that this visibility helps manage loads and charging behavior, improve battery longevity, and expedite troubleshooting when systems don’t perform as expected.

Installation Checklist

We like checklists because they reduce mistakes. Here is our short checklist before commissioning:

• Verify polarity and torque values for terminal connections.
• Place a DC fuse/breaker near the positive terminal sized for expected continuous current plus margin.
• Ensure the charger is set to LiFePO4-compatible voltage (29.2V) or is the included unit.
• Balance the batteries (if multiple units) to the same SoC before paralleling or series connection.
• Secure battery to prevent movement and vibration, and allow airflow for the charger.

Troubleshooting Tips

When things aren’t performing as we expect, we run a few quick checks: confirm charger output voltage is ~29.2V, verify Bluetooth app shows battery health and errors, and inspect fuses and connectors for heat or discoloration. If we see persistent errors, we contact LOSSIGY’s 24-hour support and provide cycle count, error codes, and environmental conditions for faster diagnosis.

Environmental Considerations

We appreciate that LiFePO4 chemistry is less environmentally problematic than some older chemistries due to safer thermal behavior and longer life reducing replacement frequency. At end of life, we plan for responsible recycling through local battery recycling programs rather than disposal.

Cost Considerations & Value

Upfront, LiFePO4 is typically more expensive than lead-acid for the same rated Ah, but when we look at usable energy, cycle life, maintenance savings (no watering), and weight reduction, LiFePO4 often offers a lower total cost of ownership over several years. The included charger and Bluetooth feature add immediate value by reducing additional purchase needs.

Accessories & Complementary Gear

We recommend pairing this battery with:

• An MPPT solar charge controller that allows LiFePO4 voltage settings.
• A DC-DC charger for vehicle charging that supports 29.2V charge profiles.
• Properly rated fuses/breakers and DC wiring sized to handle continuous and peak currents. This small set of accessories ensures reliable, safe operation and maximizes battery lifespan.

Common Mistakes to Avoid

We’ve seen users make a few recurring mistakes: mixing batteries of different states/ages when paralleling, using lead-acid charge profiles with LiFePO4 packs, and skipping proper fusing. Avoid these by keeping everything matched, setting the correct charge profile (29.2V target), and protecting the circuit with a fuse close to the battery.

Long-Term Ownership Tips

To keep the battery performing well for years we monitor cycle counts and state of health (via Bluetooth), avoid prolonged float at very high voltages, and do occasional full recharge cycles to keep balancing working properly. If used seasonally, we charge to ~50–70% before storing and check the battery every few months.

Manufacturer Support & Documentation

LOSSIGY’s 24-hour technical support is useful for quick questions during setup or troubleshooting, and their 90-day after-sales window offers an initial safety net. We still recommend downloading and archiving any available manuals, firmware updates, and wiring diagrams immediately after purchase to make future support interactions smoother.

Final Verdict

We find the LOSSIGY 24V 100AH Bluetooth LiFePO4 battery and included 29.2V/15A smart charger to be a strong contender for anyone upgrading from lead-acid or seeking a compact, reliable deep-cycle solution for RVs, boats, trolling motors, or solar systems. Given the modern BMS functionality, Bluetooth monitoring, and a sensible charger tailored to the chemistry, we believe this package provides good performance and practical convenience for a broad range of mobile and off-grid applications.

If we were advising someone considering this battery, we’d recommend confirming physical fit and weight limits for the intended installation area, verifying the charger and controllers are set for LiFePO4 charging parameters, and registering the product with LOSSIGY for faster support if needed.

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