lithium battery solar backup 30V 1.14kWh 5000 cycles!

Extremely Durable and High-Performance Battery Pack

Yuasa lithium battery modules represent state-of-the-art technology. No lead-acid battery comes close in terms of performance, lifespan, and ease of use.

Ideal for:
Home backup systems, campers, boats, yachts, garden sheds, off-grid cabins, and many other applications.


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Technical Specifications:

Nominal Voltage: 30V (can be adjusted for 24V systems)

Voltage Range:
  30V system: 22–32.8V
  24V system: 19.3–28.7V

Capacity: 40Ah
  30V system: 1140Wh
  24V system: 1050Wh

Dimensions:
  Length: 300 mm
  Width: 180 mm
  Height: 125 mm

Weight: 12.9 kg

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Condition:
Repurposed from lightly used, almost new modules. All tested with >95% of rated capacity.
Most cells show capacity above 90%. A few are just under 95%, possibly due to measurement error (tester tolerance ±2%).
To avoid any doubts or disputes, capacity is conservatively declared as above 90%.

Manufacturer's Specs:

Cycle Life: 5500 cycles at 100% depth of discharge (to 80% capacity @ 25°C)

Recommended Charging:
  1C (50A) constant current, followed by 4.1V constant voltage phase


Each module contains 8 LEV40 cells in series. Includes original high-quality BMS PCB and interface — note: BMS is not functional in standalone mode.

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Warranty:
Original manufacturer's warranty was 2 years (for new batteries). These are salvaged modules, so no official warranty is provided. However, all units have been thoroughly tested and are in near-new condition. Risk of failure is minimal.

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Availability:
20 modules available. Basic assistance with installation possible.
No swaps. No timewasters.

Delivery available within approx. 50 km of Dublin. For longer distances, collection or agreement-based delivery only.