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Batteries for Inverter

Batteries for Inverter — LiFePO4 energy storage for backup and off-grid power

An inverter battery is the core component of any backup or off-grid power system. Modern LiFePO4 batteries deliver stable energy output over 6,000+ cycles, withstand deep discharge down to 80% DoD, and integrate seamlessly with hybrid inverters and solar panels. Our catalog features models from 5 to 25 kWh at 48 V (51.2 V) nominal voltage — suitable for apartments, houses, and small commercial installations.

How to choose a battery for inverter

When selecting a lithium battery, consider your load capacity, desired backup runtime, and inverter compatibility. Below is a comparison of our top-selling models:

ModelCapacityVoltageCyclesApplication
Veichi VCLB-5K-D015.12 kWh51.2 V6,000Apartment, office
Felicity LPBA48100-OL5.12 kWh51.2 V6,000+Apartment, cottage
Felicity LPBA481708.7 kWh51.2 V6,000+House up to 150 m2
Veichi VCLB-10K-W0110.24 kWh51.2 V6,000House, small business
Rosen BAT-51.2V-200AH-WALL10.24 kWh51.2 V6,000+House, office

For an apartment, a 5 kWh battery is sufficient — providing 4 to 6 hours of runtime for a refrigerator, lighting, and router. For a house with electric heating or air conditioning, we recommend 10 kWh or more.

Inverter battery manufacturers

The chastotnik.ua catalog features brands with confirmed sales and official warranty in Ukraine:

  • Felicity — LiFePO4 lineup from 5.12 to 25 kWh; robust rack-mount and wall-mount enclosures; 6,000+ cycle life.
  • Veichi — compact wall-mount and floor-standing models 5–10 kWh with BMS and CAN/RS485 interfaces; temperature-controlled charging.
  • Rosen — rack-mount and wall-mount modules 5–10 kWh (BAT-51.2V-200AH-WALL, BAT-51.2V-200AH-RACK); built-in BMS with CAN and RS485 protocols for integration with most hybrid inverters.

Batteries for inverter by specifications

Warranty and support

All inverter batteries are sold with an official manufacturer warranty of 5 years or more. Chastotnik.ua is an authorized distributor of Veichi, Felicity, and Rosen in Ukraine. Delivery via Nova Poshta across Ukraine: Kyiv, Kharkiv, Odesa, Dnipro, Lviv, and other cities. Payment options: bank transfer for companies, card payment, or cash on delivery for individuals.

Frequently Asked Questions

Which battery is better for an inverter — LiFePO4 or lead-acid?

LiFePO4 batteries significantly outperform lead-acid: 6,000 cycles vs 300–500, 80% DoD vs 50%, 3–4 times lighter weight, and 10–15 year lifespan. Lead-acid is cheaper upfront, but the cost per kWh over the full lifecycle is 4–5 times lower with LiFePO4.

How long will a 5 kWh battery last in an apartment?

A 5 kWh battery provides 4–6 hours of backup at 800–1,200 W load (refrigerator, lighting, router, device charging). Connecting a kettle or microwave reduces runtime to 1–2 hours. For 24-hour apartment backup, we recommend 10 kWh or more.

How to connect a battery to a hybrid inverter?

The battery connects to the inverter via a DC cable of appropriate cross-section (typically 25–50 mm²) and a CAN or RS485 communication port for BMS data exchange. Important: verify the compatibility protocol between inverter and battery — Veichi, Felicity, and Rosen support most Deye, Veichi, and Growatt hybrid inverters.

How many cycles does a LiFePO4 battery last?

LiFePO4 batteries are rated for 6,000 cycles at 80% depth of discharge. This is equivalent to 15–16 years of daily use. At a less intensive regime (50% DoD), the cycle life can reach 8,000–10,000 cycles.

Can inverter battery capacity be expanded?

Yes, most LiFePO4 batteries support parallel connection for capacity expansion. For example, Felicity allows up to 16 modules in parallel, Veichi — up to 32. The key requirement is that modules must be from the same manufacturer and of equal capacity.