Batteries & Energy Storage

Batteries & Energy Storage Solutions

Store your solar energy and keep the power on with batteries and energy storage systems from PES Supply. Our inventory covers every chemistry and capacity—from LiFePO4 lithium batteries and sealed lead-acid to AGM and gel batteries. Power your off-grid cabin, whole-home backup system, or commercial microgrid with reliable storage from EG4, Fortress Power, BYD, SONNEN, Victron Energy, and more.

Find the Right Battery

• LiFePO4 lithium batteries – 5kWh, 10kWh, 14kWh, and 19kWh options
• AGM & gel sealed lead-acid for budget-friendly backup
• Server-rack batteries like EG4 LifePower and server rack modules
• Modular stackable systems for scalable capacity
• Battery accessories – cables, busbars, shunts, and BMS

Lithium iron phosphate (LiFePO4) batteries offer 6,000+ cycle lifetimes, built-in BMS protection, and safe operation in any orientation. Choose the right voltage (12V, 24V, 48V) and capacity for your inverter and load profile. Our team can help you size a bank for any application.

Browse the full selection below and order today with fast shipping from PES Supply. Questions? Our solar and backup power experts are ready to help you spec the right system—contact us.