Enerwatt EWLI-12V9 LiFePO4 Battery 12V 9Ah 3C

Enerwatt EWLI-12V9 LiFePO4 Battery 12V 9Ah 3C — High-Rate Lithium for Power Tools, UPS & Specialty Electronics

The Enerwatt EWLI-12V9 is a 12V 9Ah LiFePO4 (lithium iron phosphate) battery with a 3C continuous discharge rate — meaning it can deliver up to 27A continuously, making it well-suited for high-rate applications such as power tools, small UPS systems, robotics, and specialty electronics requiring compact, high-current lithium power.

At just 0.9 kg, it is significantly lighter than an equivalent AGM battery while offering longer cycle life (2000+ cycles), consistent voltage under load, and 100% usable depth of discharge. Backed by a 36-month warranty from Enerwatt.

Key Features

• 12V / 9Ah (20h rate) — compact lithium power for high-rate specialty applications
• 3C discharge rate — up to 27A continuous discharge for power tools and high-draw electronics
• LiFePO4 chemistry — safest lithium chemistry; no thermal runaway risk; 2000+ cycle life
• Lightweight — only 0.9 kg vs. significantly heavier AGM equivalents
• 100% usable depth of discharge (DoD) — full 9Ah available vs. ~4.5Ah usable from equivalent AGM
• Integrated BMS — protects against overcharge, over-discharge, short circuit, and temperature extremes
• 36-month warranty — backed by Enerwatt

Specifications

• Voltage: 12V (nominal)
• Capacity: 9Ah (20h rate)
• Discharge Rate: 3C (27A continuous)
• Chemistry: LiFePO4 (Lithium Iron Phosphate)
• Dimensions: 5.9" x 2.6" x 3.9" (151 x 65 x 100 mm)
• Weight: 0.9 kg
• Part/Model Number: EWLI-12V9
• Brand: Enerwatt
• Warranty: 36 months

Ideal For

• Power tools and high-rate portable equipment
• Small UPS and backup power systems
• Robotics and automation applications
• Specialty electronics requiring compact 12V high-rate lithium
• Replacing AGM batteries in weight-sensitive applications

Ships from Thunder Battery — Canada's trusted energy storage dealer.