Sustainable Power Prototyping

Properties

New Lithium Battery (Solar Pack)

Recycled Lithium Battery (18650 cells)

Lead-Acid Car Battery

Nominal Voltage

12 V

3.7 V per cell

12 V

Nominal Capacity (Ah)

100 Ah

2.5 Ah

50 Ah

Usable Capacity (Ah)

100 Ah

2.5 Ah

25 Ah (50% DoD)

Usable Energy (Wh)

1200 Wh

9.25 Wh

300 Wh

Quantity Needed for 100 Ah Usable @ 12 V

1 battery

~132 cells (4 in series × 33 in parallel)

4 batteries in parallel

Notes

Ready-to-use battery pack, 100% usable capacity

Recycled cells, lower individual capacity

Limited depth of discharge, more batteries needed for 100 Ah usable