LiTime MPPT Solar Charge Controller 100A 12–48V (Bluetooth) — 150V DC Input, LCD & Die‑Cast Heat Sink

The LiTime 12V–48V 100A MPPT solar charge controller is a high-efficiency, Bluetooth-enabled regulator that safely converts PV input (up to 150V DC) into optimized battery charging for 12V–48V systems.

Compact but robust, this LiTime controller combines near‑lab‑grade MPPT efficiency with a die‑cast aluminum heat sink, an LCD status display, and smartphone monitoring. It supports up to 100A charging and accepts a PV open‑circuit input to 150V, delivering faster energy harvest than PWM controllers while offering adjustable fan control, password‑protected Bluetooth, and multiple safety certifications.

How does this controller improve charging speed and energy yield?

The built‑in MPPT algorithm tracks the PV array’s maximum power point and converts excess voltage into usable current, meaning more watts stored in your battery bank. LiTime reports up to about 99% MPPT tracking efficiency, which increases harvest especially in low‑light, partial shade, or variable temperature conditions.

• 99% MPPT tracking efficiency for increased daily energy capture
• Better conversion than PWM designs, particularly in diffuse light
• Support for 12V–48V battery systems to fit many off‑grid layouts

What are the electrical limits and safety precautions I should know?

Always keep the charging current at or below 100A and ensure PV input power stays within the recommended limits for each battery voltage to avoid damage. This controller accepts up to 150V DC open‑circuit PV input, but total PV wattage should not exceed specified caps based on system voltage.

• Max charging current: 100A
• Max PV open‑circuit input voltage: 150V DC
• PV wattage limits: 12V@1500W, 24V@3000W, 36V@4500W, 48V@6000W
• Not waterproof — avoid marine or submerged installations

How can I monitor and control the controller remotely?

The unit has integrated Bluetooth with password protection so you can pair with LiTime’s mobile app for live readouts and configuration. Bluetooth range varies by environment, so plan placement accordingly to maintain a stable connection.

• Phone monitoring via Bluetooth; secure pairing with password protection
• Approximate open‑space range: 50 ft; reduced through walls or metal enclosures
• LCD on the device provides immediate system status without a phone

How does the controller manage heat and noise for longer life?

Thermal design combines a die‑cast aluminum heat sink and an adjustable fan to reduce operating temperature and power loss. The fan supports a silent mode and timer function so you can minimize noise during night hours while keeping components cool when needed.

• Die‑cast aluminum housing for fast heat dissipation and durability
• Fan with optional silent mode and configurable timer up to 12 hours
• Lower operating temperatures extend component life and reduce losses

Who is this for? The LiTime 12V–48V 100A MPPT controller is designed for homeowners, small commercial sites, RVs, cabins, off‑grid installations, and solar installers who need an efficient, feature‑rich regulator with smartphone monitoring and compact thermal management. It’s ideal when you want higher energy harvest than PWM controllers, flexible battery voltage support, and advanced safety features like FCC and UN38.3 certifications, a two‑year warranty, responsive 24/7 support, plus product liability coverage under AIG starting May 22, 2026. Note: this unit is not suitable for marine or fully exposed wet environments; follow the electrical limits for safe, reliable operation.