[Universal Group27 Fit&Longer Runtime] Power Queen 12V 125Ah lithium battery is designed in a BCI Group 27 size(12.13×6.69×8.31 inches). Compared to the 12V 100Ah lithium battery of the same size, it offers an impressive energy increase of 320Wh, it can run 32 hours longer when powering a 10W lighting lamp. Perfect for RVs like the 2024 Brinkley Model Z 2900, Thor Four Winds 22E, and Forest River Forester. Also an ideal choice for trolling motor,marine,camping, solar systems, home energy storage, and off-grid living. 

[Bluetooth 5.0 Real-time Monitoring & Remote Control] Power Queen 12V 125Ah LiFePO4 battery integrates advanced Bluetooth 5.0 technology. Scan the QR code on the battery top, and you can view battery data and status in real time via the Bluetooth app, including SOC, voltage, current, power, temperature, low-battery reminder, charge/discharge status, protection status, etc. No more guessing games, eliminating your power anxiety! You can also remotely control battery discharge and power off via Bluetooth (within 10 meters), putting control at your fingertips for ultimate convenience.

[Self-Developed Smart BMS] 20+ Protections, Zero Compromise.Power Queen 12V 125Ah LiFePO4 battery adopts self-developed Battery Management System (BMS) with high precision and rapid response. Beyond industry-standard protections against overcharge, over-discharge, overcurrent, short circuit, and overtemperature, it has low-temperature charge/discharge protection,the battery cuts charging＜32°F, cuts discharging＜ -4°F, ensure battery safety even in cold winter conditions. The pre-charge function allows the battery to be compatible with all inverters on the market.Auto-resumes power supply only 30s after overload protection, ensuring safe and stable device operation even in emergency.

[Cost-Effective & 10-Year Hassle-Free] Power Queen’s 12V 125Ah lithium battery, built with automotive-grade eco-friendly LiFePO4 cells.One battery can accompany your RV or boat for 10 years, up to 15,000 cycles—far surpassing lead-acid batteries (2-3 years, 200-500 cycles),eliminating the need for frequent replacements.With a energy equivalent to 2.6 units of 12V 100Ah lead-acid batteries,it’s a smarter long-term investment for unmatched value and reliability.

[Own Factory and Excellent Customer Service] With our self-owned factory, Power Queen ensures top-tier quality via establishing a full lifecycle management and maintenance system for the products. It holds multi - international certifications (FCC, CE, RoHS, UN38.3) and passes the UL-1973 test, meeting the ABYC standard E-13. Each battery has a unique traceability code and comes with a 5 - year warranty.With 12 U.S. warehouses, we can ship based on actual inventory from the nearest warehouse for fast delivery. We always prioritize customers, offering 24/7 all-round service, including product consultation, technical support, and after-sales service.