Smart Chargers & Accessories

Intelligent charging. Maximum battery life.

Intelligent charging. Maximum battery life.

Portable Power Stations

Clean energy anywhere you go.

Clean energy anywhere you go.

B2B & OEM Solutions

Custom battery packs for your business.

Custom battery packs for your business.

✅ UL & CE Certified
🚚 Free shipping
🛡️ 5-Year Warranty
💬 24/7 Support
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Customer Satisfaction

LiFePO4 Batteries

Choose your lithium battery

Superior safety · Lightweight · Maintenance-free · 4000+ deep cycles
12V 100AH LIFEPO4

12V 100Ah-200Ah LiFePO4 Battery Packs - Premium Grade A Cells with BMS

Power that lasts. Safety you trust.

12V 300AH LIFEpo4

12V/24V/36V LiFePO4 Battery 300Ah - Solar Energy Storage with Bluetooth BMS

Long-lasting energy, assured security

36V 100AH LIFEPO4

LiFePO4 Battery Pack 36V 300Ah - Large Capacity Rechargeable for Trolley & Camping

Persistent energy, reliable protection

Smart Chargers

Precision charging. Maximum lifespan.

Programmable · Multi-chemistry · LiFePO4 optimized
0-60v 0-40A Adjustable

0-100V Adjustable LiFePO4 Battery Charger - Smart 25A with LCD Display for Solar/RV/Boat

Stable charging, trusted guarding

0-120V 0-25A adjustable

Universal LiFePO4 Battery Charger - 12V/24V/36V/48V/72V Adjustable Power Supply

Charge steady, safety ready

0-15V 0-100A adjustable

12V 60A/100A LiFePO4 Battery Charger - Dual Rate Smart Charging for Marine & RV

Swift charging, full power fast

Testimonials

Trusted by off-grid enthusiasts

Real feedback from real customers
star star star star star

"I got my 12V 200Ah battery about a month ago. I've been using it for my RV solar setup and it performs incredibly well. Way better than the lead-acid batteries I had before. The weight difference alone is worth the upgrade."

M
Mike T.
Texas, USA
✅ 12V 100Ah-200Ah LiFePO4 Battery
star star star star star

"古いAGMバッテリーに完全に置き換え可能です。BMSの動作は安定しており、Bluetooth監視機能も便利です。設定に関する質問にも迅速にサポート対応してもらえました。"

そうた
おおさか, にほん
✅ 12V/24V/36V LiFePO4 Battery 300Ah
star star star star star

"The adjustable charger with LCD display is a game changer. I can monitor charging status in real-time and the auto-stop feature gives me peace of mind. Charges my 200Ah battery from 20% to full in about 2 hours."

J
James W.
London, UK
✅ 0-100V Adjustable LiFePO4 Charger 25A

Engineered for extreme reliability

Experience the next generation of energy storage
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4000+ Cycles

10x longer than lead-acid, 10+ years service life.

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Smart BMS

Over-charge, over-discharge, short-circuit & temperature protection.

99% Usable Capacity

Fast charging, stable output — no voltage sag.

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-20°C ~ 60°C

Wide temperature range, self-heating option available.

Our Mission

Powering a cleaner tomorrow

At Capacity.Li, we believe energy should be safe, sustainable, and accessible. Our LiFePO₄ batteries deliver reliable power without compromise — whether you're living off-grid, exploring the outdoors, or building the next generation of clean energy infrastructure.

From raw cells to finished battery packs, every product is engineered with precision, tested for safety, and backed by a decade of warranty. We don't just make batteries — we power independence.

Grade-A Cells

Only top-grade automotive LiFePO₄ cells, individually tested.

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5-Year Warranty

Industry-leading warranty and 24/7 technical support.

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Eco-Friendly

Lead-free, recyclable, 10+ year service life — less waste.

⚡ 10,000+ batteries powering homes, RVs, and businesses worldwide
Comparison

LiFePO₄ vs Lead-Acid: The facts

See why lithium iron phosphate outperforms traditional batteries in every metric
Feature 🔋 LiFePO₄ Lead-Acid AGM
Cycle Life 4000+ cycles 300–500 cycles 500–800 cycles
Weight (100Ah) ~12 kg ~30 kg ~26 kg
Usable Capacity 99% 50% 50–60%
Charge Speed 1–2 hours 6–10 hours 4–8 hours
Safety ✔ Non-toxic, no thermal runaway ✗ Toxic lead & acid leakage ✗ Acid leakage risk
Maintenance ✔ Zero maintenance ✗ Water refill required ✔ Maintenance-free

Data based on standard 100Ah batteries at 80% DoD. Actual performance may vary by model and usage.

Blog

Insights & Guides

Everything about LiFePO4 technology and energy storage
Battery Charger

How to Choose the Right Battery Charger for Your Solar System: Complete Guide

March 28, 2026

Battery Comparison

LiFePO4 vs. Lead Acid: Complete Technical Comparison

March 28, 2026

LiFePO4 solar

Solar Power Systems: Building Your Off-Grid Energy Solution

March 23, 2026

B2B Solutions

Power your business with Capacity.Li

Tailored energy solutions for distributors, integrators & OEM partners
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Bulk Procurement

Tiered pricing, dedicated account managers, flexible logistics.

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OEM / ODM Services

Custom battery packs, branding, and BMS configuration.

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Dealer Program

Join our global network with exclusive pricing & support.

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Frequently asked questions

Everything you need to know about LiFePO4
What is the lifespan of a LiFePO4 battery?

Over 4000 cycles at 80% DoD — 10+ years of daily use, up to 5x longer than lead-acid.

Are these batteries a direct replacement for lead-acid?

Yes, drop-in replacement for lead-acid, AGM, and gel batteries. Same standard sizes, no modifications needed.

Do I need a special charger?

Standard lead-acid chargers with LiFePO4 profile work, or our smart chargers optimize voltage for maximum lifespan.

Is there a warranty?

5-year manufacturer warranty and 24/7 technical support on all LiFePO4 batteries.

Do you offer free shipping?

Yes, free shipping on all orders within the continental US. International shipping available at competitive rates.

Can I connect multiple batteries in series or parallel?

Yes, our batteries support series and parallel connections. Contact our technical team for specific configuration guidance.