Description
A Felicity 15 kWh lithium battery — one of the larger units in our lithium batteries range, and a common choice for whole-home storage or a small commercial load.
At 15 kWh this is a bank for a household that either runs substantial loads, or wants genuine multi-day autonomy. It is also the capacity at which the battery bank starts to dominate the cost of a system, which is precisely why the sizing has to be right.
Two figures decide the capacity you need: your daily energy use in kWh, and your autonomy in days. The arithmetic is in our solar sizing guide. Do not size by intuition — an undersized bank simply will not carry the night, and you end up with a generator running exactly as often as before.
Lithium rather than lead-acid is a deliberate choice at this size. You get roughly 80–90% of the rated capacity usable instead of about 50%, several times the cycle life, no water top-ups, and much better behaviour in Nigerian heat. Our lithium versus lead-acid guide covers the comparison and the checks that catch mislabelled capacity.
Rated specification (manufacturer): Rated Voltage 51.2 V — the 48 V class; Rated Capacity 300 Ah; Rated Energy 15,360 Wh (15.36 kWh). Source: Felicity Solar 48 V 300 Ah platform (LPBF48300 series). The exact model we supply is confirmed to you in writing before you pay.
That 51.2 V rating is the 48 V class, and it decides the inverter: this bank needs a 48 V inverter and cannot be run on a 24 V one. See our 24V vs 48V guide.
Manufacturer warranty: 5 years. The exact unit, its dimensions, its weight and the parallel limits are confirmed to you in writing before you pay, and we correct this page if the supplied unit differs.
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