Home battery storage

Growatt HOPE 5.0L-B1 40 kWh

Off-grid

Growatt Hope 5.0L-B1 LiFePO4 battery, 40 kWh (8× 5.12 kWh modules). Low-voltage off-grid storage at 51.2 V, 98 % DoD, >6000 cycles and a 5-year warranty. Stacks up to 48 modules (240 kWh) in parallel — for larger configurations contact us for a quote on request.

Choose variant

5 kWh€1,160 10 kWh€2,320 15 kWh€3,480 20 kWh€4,640 25 kWh€5,800 30 kWh€6,960 35 kWh€8,120 40 kWh€9,280 45 kWh€10,440

Price

Excl. VAT€7,669

VAT (21%)€1,611

Total (Total incl. VAT)€9,280

In cart

Warranty

5 years or 6000 cycles

About this product

About the Growatt Hope 5.0L-B1

The Growatt Hope 5.0L-B1 is a low-voltage LiFePO4 battery for off-grid and backup solar systems. Each module stores 5.12 kWh (5.0 kWh usable) at 51.2 V, and modules connect in parallel to scale capacity as your needs grow. With a 98 % depth of discharge and a cycle life above 6000 cycles, it delivers dependable daily storage with a long service life.

Why 40 kWh?

This 40 kWh configuration combines 8 Hope 5.0L-B1 modules (8 × 5.12 kWh) for a total weight of about 344 kg. It suits homes that want meaningful overnight autonomy and backup during outages, balancing usable capacity against footprint and budget.

Expandable up to 48 modules

Need more storage than shown here? Hope modules stack in parallel up to 48 packs. We list configurations up to 45 kWh online — for larger systems contact us and we will quote on request.

Specifications

Capacity40.96 kWh

Usable capacity40 kWh

Voltage51.2 V (40–58.4 V)

Current100 A charge / discharge (peak 250 A, 150 ms)

Depth of discharge98%

Cycle life>6000 (25 °C, 0.2 C)

ChemistryLiFePO4

CommunicationCAN / RS485

Protection ratingIP20

Operating temperaturecharge 0…+55 °C / discharge −20…+55 °C

Dimensions440 × 480 × 130.5 mm (per module)

Weight344 kg (8 × 43 kg)

Warranty5 years

Frequently Asked Questions

What can a 40 kWh Hope battery power?

A 40 kWh Hope system stores energy from your solar array for evening use and backup. The right size depends on your daily consumption — 40 kWh typically covers a meaningful share of a household's overnight and outage needs. Ask us for a tailored sizing based on your bill.

Can I expand the 40 kWh system later?

Yes. The Hope 5.0L-B1 is modular and scales in parallel up to 48 packs, so you can add modules to your 8-module (40 kWh) system as your consumption grows.

Is the Hope battery suitable for off-grid use?

Yes. The Hope 5.0L-B1 is a low-voltage battery designed for off-grid and backup inverters (SPF / SPE class), with CAN/RS485 communication for inverter integration.