Litime 20A Mountable LiFePO4 Battery Charger — 12V/16V Selectable, IP65 Waterproof, Fast AC-to-DC Charging

LiTime’s 20A mountable LiFePO4 charger is a weatherproof AC-to-DC unit that fast-charges 12V or 16V lithium batteries with adjustable voltage, smart BMS activation and clear LED status indicators.

Built for marine, RV, automotive and off-grid use, this LiTime charger combines a 20A charging rate with selectable 12V (14.6V) or 16V (18.25V) modes, solid protections and an IP65-rated enclosure. It’s designed to reduce downtime with faster recharge cycles, while a three-stage charging algorithm helps preserve LiFePO4 battery health. LED lights and a protected switch make operation straightforward in outdoor or enclosed installations.

How quickly will this charger restore my battery?

The 20A output cuts recharge times compared with lower-current chargers. For example, a 16V 70Ah LiFePO4 pack can be brought to full capacity in roughly 3.5 hours, while a 100Ah pack reaches full charge in about 5 hours under ideal conditions.

• 20A constant-current capability for faster top-up and bulk charging.
• Estimated 3.5 hours for 16V 70Ah, ~5 hours for 16V 100Ah (dependent on battery state and temperature).
• Switchable 12V and 16V presets let you match charger output to your battery chemistry and bank voltage.

What protections and intelligence keep my batteries safe?

LiTime integrates a smart three-stage charging routine—pre-charge, constant current, constant voltage—plus a suite of hardware protections. These safeguards reduce stress on cells and help avoid common faults during charge cycles.

• Smart BMS activation sequence to gently wake deeply discharged LiFePO4 packs.
• Built-in protections for over-temperature, over-voltage, over-current, short-circuit, low-voltage and reverse polarity.
• LED indicators display charging state so you can monitor progress at a glance.

Can this charger handle outdoor and marine environments?

Yes—an IP65-rated housing and protective cover shield the unit from water spray and dust, making it suitable for boats, campsites and exposed compartments. Mounting features let you secure the charger in engine bays, lockers or on bulkheads.

• IP65 enclosure resists rain and spray for reliable outdoor performance.
• Durable mounting design for fixed installation in vehicles, vessels, or equipment rooms.
• Protected control switch and clear LEDs for use in low-light or wet conditions.

How do I choose between 12V and 16V settings for my setup?

Select 12V (14.6V) when charging single 12V LiFePO4 banks; choose 16V (18.25V) for systems built to that nominal voltage. The one-button selection makes switching simple and avoids the need for multiple chargers.

• 12V mode targets 14.6V float/charge for common 12V LiFePO4 systems.
• 16V mode targets 18.25V for higher-voltage lithium configurations and certain specialized banks.
• One-button toggle for fast reconfiguration without tools or firmware changes.

Who is this for? LiTime’s 20A mountable LiFePO4 charger fits boat owners, RV enthusiasts, fleet operators and anyone who needs dependable, rapid charging for lithium battery banks. It’s especially useful where weatherproofing and robust electrical protections matter—marine compartments, outdoor equipment sheds, service vehicles and mobile power installations. If you want a compact, mount-ready charger that balances speed, selectable voltage, and safety features, this LiTime model is built for those applications.