EVE LF100LA 3.2 V 102 Ah LiFePO4 cell

EVE LF100LA is a prismatic LiFePO4 cell manufactured by EVE, with a nominal voltage of 3.2 V and a capacity of 102 Ah. It is a building block for professionally engineered solar batteries, household storage and battery servicing. Ampere-hours describe charge capacity; compare complete storage systems using voltage and energy as well. One cell provides 326.4 Wh of nominal energy. This offer is sourced directly through EVE with dispatch from its supplier warehouse in Germany.

Planning 4S, 8S and 16S packs

Four matching cells in series provide 12.8 V and 1.3056 kWh; eight provide 25.6 V and 2.6112 kWh; sixteen provide 51.2 V and 5.2224 kWh. Series-string capacity remains 102 Ah. These are calculated nominal values before operating reserves and losses. Design the complete system with suitable battery management, protection and interconnections.

A cell for a purpose-built battery pack

This individual prismatic cell lets an experienced builder size a battery around the required voltage, capacity and installation space. Applications include a professionally assembled solar-storage pack and servicing a pack that uses matching cells. The electrical design brings together cells, a battery management system and protection. The mechanical design secures the cells and shields their terminals. Selecting these components separately gives the project designer control over the layout and integration of the complete battery.

Series and parallel connections explained

A series connection adds cell voltages while the amp-hour capacity remains that of one string. Four 3.2 V cells provide 12.8 V nominal, eight provide 25.6 V and sixteen provide 51.2 V. Parallel strings increase capacity at the same voltage and require current-sharing and protection design. Choose the number of cells from the pack diagram. Designations such as 4S, 8S and 16S describe the number of series-connected cells and help identify the appropriate battery management system.

Choose battery management for the complete pack

A BMS monitors individual cell voltages and, depending on its design, current and temperature. Select a BMS for LiFePO4 chemistry and the correct series-cell count. Its current rating must match both the permitted cell currents and the intended pack load. An amp-hour rating alone does not specify the maximum discharge current. Plan the main fuse, isolation device, sense wiring and cell-balancing procedure together, using the documentation for the exact components selected for the assembly.

Plan secure mounting and terminal connections

Allow space for the cell dimensions, terminal arrangement, insulation and busbars when designing the enclosure. Interconnections need appropriate conductor size, protected surfaces and the specified terminal torque. Mechanical support follows the construction requirements of the exact cell; any compression arrangement is selected from its model documentation. Covered terminals and clearly marked polarity support a methodical build and later inspection. A well-organized enclosure also makes access to the BMS and service points easier.

Select matching cells for assembly or service

For a new pack, choose cells with compatible electrical characteristics and a jointly designed operating range. For a replacement, compare capacity, the condition of the existing cells, dimensions, terminals and BMS requirements. Matching nominal voltage is one part of that assessment. Follow the service procedure for bringing cells to a suitable state of charge before connection, and check voltage and polarity. This helps select a suitable replacement for the actual pack rather than relying on capacity alone.

Translate cell capacity into system energy

Nominal cell energy is voltage multiplied by amp-hour capacity. Pack energy is the sum for its installed cells; energy reaching the loads then depends on the BMS settings, operating reserve, temperature and conversion efficiency. For solar storage, assess battery capacity separately from inverter output power. Operation at the required load must remain within all relevant current limits. The calculations below compare pack sizes and are planning examples, rather than measurements of a finished assembly.

Prepare the project before ordering

Record required daily energy, typical and maximum loads, and the available installation space. For a fixed battery, add the exact inverter model; for cells, add the pack diagram and BMS; for a mobile source, list the equipment to be powered. This makes selection of capacity, format, cabling and protection more practical. Choose the exact item and quantity. Availability and dispatch timing are confirmed for the specific order. Tomorrow Systems® s.r.o. is the seller.

Check the installation at commissioning

At delivery and assembly, compare the exact variant with the project and its instructions. Check physical condition, terminals, polarity and charging settings. Use initial operation to assess actual demand, charging and the configured reserve. A fixed electrical installation should be commissioned by a qualified professional. Periodic checks of connections, operating environment and access to protection devices keep the installation organized throughout its use.

Ordering and delivery

Price on request. The offered unit is one LF100LA cell; the supplier minimum is four cells. German supplier stock was confirmed on 9 October 2026. We prepare a quotation for your required quantity and confirm the price, availability and delivery date before payment. Estimated delivery after order confirmation is 2–3 days. Our own stock is zero. Contact the seller using this store’s contact details for a tailored quotation.

The LF100L family reference photograph is supplied on the EVE model page. The offered LF100LA has a nominal capacity of 102 Ah according to its current model specifications.