Pecron EP3800-48V Expansion Battery - 3,840Wh LiFePO4 Add-On (Compatible with E3600 LFP, E3800 LFP, and more)

Extend your Pecron system's runtime. Add 3,840Wh of LiFePO4 capacity when you need more.

The Pecron EP3800-48V Expansion Battery adds 3,840Wh of LiFePO4 storage to your existing Pecron portable power station — doubling or tripling your total runtime for extended outages, multi-day off-grid setups, or serious emergency preparedness. Stack up to 6 EP3800-48V units to expand a single E3800 LFP to over 26,880Wh — enough for a full week of essential home operation during grid interruptions.

Why customers add the EP3800-48V:

• 3,840Wh LiFePO4 capacity. Nearly doubles the runtime of an E3600 LFP or E3800 LFP for extended outages.
• EV-grade LiFePO4 chemistry. 3,500+ charge cycles to 80% capacity. Same reliable battery technology used in your base unit.
• Simple plug-and-play connection. Direct connection cable pairs the expansion battery with your Pecron base unit — no complex wiring or installation required.
• Modular stacking design. Add up to 6 units to a single E3800 LFP (for a total of 26,880Wh) or up to 4 to an E3600 LFP (for 18,432Wh). Grow your system as your needs grow.
• Compact and portable. 66.8 lbs and lower-profile than a base unit (17.3" × 12.2" × 8.8"). Stack them beside your base unit in a closet, garage, or utility room.
• Wide compatibility. Works with E1000LFP, E1500LFP, E2400LFP, E3600LFP, E3800LFP, F3000LFP, and other 48V-compatible Pecron portable power stations.
• Silent operation. No fans, no noise. Pure passive battery storage.
• Operates in temperature extremes. Charges and stores in 0-45°C (32-113°F) — works through Florida summers and winter storage.
• Internationally certified. UL, FCC, CE, RoHS, UN38.3, MSDS, and other certifications matching Pecron's full compliance standards.
• 2-year warranty (1-year standard + 1-year extended). Automatically active upon purchase — no registration required.

Who this is for:

Existing Pecron portable power station owners looking to extend runtime. Hurricane prep families wanting multi-day (not just single-day) backup capacity. Off-grid homesteaders scaling their system. Homes with critical medical equipment needing extended emergency power. Anyone who's outgrown the base capacity of their current Pecron system.

Compatibility:

The EP3800-48V connects directly to Pecron 48V-compatible base units, including:

• Pecron E1000LFP
• Pecron E1500LFP
• Pecron E2400LFP
• Pecron E3600LFP
• Pecron E3800LFP
• Pecron F3000LFP

Maximum system configurations:

• E3600 LFP + 4× EP3800-48V = 18,432Wh total capacity
• E3800 LFP + 6× EP3800-48V = 26,880Wh total capacity
• Other Pecron base units support fewer expansion batteries — check compatibility for your specific model

What's in the box:

• 1× Pecron EP3800-48V Expansion Battery
• 1× Expansion battery connection cable
• User manual
• Warranty card (warranty automatically active upon purchase)

Specifications:

• Battery Capacity: 3,840Wh (51.2V × 75Ah, LiFePO4)
• Cell Chemistry: LiFePO4 (Lithium Iron Phosphate)
• Battery Cycles: 3,500+ to 80% capacity
• Connection: Compatible with Pecron 48V portable power stations
• Charge Temperature: 32-113°F (0-45°C)
• Storage Temperature: 32-113°F (0-45°C)
• Weight: 66.8 lbs (30.3 kg)
• Dimensions: 17.3" × 12.2" × 8.8"
• Warranty: 1 year standard + 1 year extended (2 years total, automatically active on purchase)
• Certifications: UL, FCC, CE, RoHS, UN38.3, MSDS

Best for:

Extending Pecron portable power station runtime, multi-day hurricane backup, off-grid homestead scaling, medical device backup requiring extended runtime, RV/van life setups needing more capacity.

Note:

The EP3800-48V is an expansion battery only — not a standalone power station. It must be connected to a compatible Pecron base unit (like the E3600 LFP or E3800 LFP) to output power.