Lithium Batteries
We build lots of custom lithium battery options — everything from gate opener packs to multi-pack Powerwalls for homes. New and used, off-the-shelf and custom.
LFP / LiFePO4: 3.2V/cell nominal — safer, longer life, preferred for off-grid
Li-ion: 3.7V/cell nominal — more energy-dense, used in EV modules
Remember: Energy storage is measured in kWh (kilowatt-hours).
To find the kWh capacity of a battery, multiply the nominal voltage by its amp hour (Ah) capacity.
Lead acid (12V): 12V × 100Ah = 1,200Wh = 1.2 kWh
Lithium (12.8V): 12.8V × 100Ah = 1,280Wh = 1.28 kWh
12V Lithium
U1 Lithium
LFP12.8V · 28Ah · 0.36 kWh
$105
Valence U-Charge
LFP12.8V · 35Ah · 0.45 kWh
$110
Mac's 100Ah Bluetooth
LFP12.8V · 100Ah · Bluetooth BMS · 1.28 kWh
$200
Mac's 170Ah Bluetooth
LFP12.8V · 170Ah · Bluetooth BMS · 2.18 kWh
$320
Photo coming soon
Mac's 300Ah
LFP12.8V · 300Ah · 3.84 kWh
$525
Photo coming soon
Mac's 330Ah
LFP12.8V · 330Ah · 4.22 kWh
$600
Mac's Custom GC2 Clone
12.8V · 100Ah · custom build · 1.28 kWh
$550
$360
Mac's Custom 200Ah
12.8V · 200Ah · 2.56 kWh
$770
$500
Mac's Custom 280Ah
LFP12.8V · 280Ah · 3.58 kWh
$1,100
24V Lithium
Mac's Custom 7S 285Ah Mach-E
Li-ion24V · 285Ah · ~7.4 kWh
$2,250
Mac's Custom 8S 285Ah Mach-E
Li-ion24V · 285Ah · ~8.4 kWh
$1,400
36V Lithium
Mac's Custom 10S 212Ah Mach-E
Li-ion36V · 212Ah · ~7.8 kWh
$2,400
Mac's Custom 10S 80Ah Nissan Leaf
36V · 80Ah · ~3.0 kWh
$1,000
$600
Photo coming soon
Mac's Golf Cart LFP
LFP36V · 105Ah · ~3.8 kWh
Call for pricing
48V Lithium — Powerwalls
Mac's Powerwall LFP
LFP48V · 150Ah · 7.7 kWh
$1,700
14S Nissan Leaf Pack
Li-ion48V · 80Ah · ~4.1 kWh
$1,000
Photo coming soon
Mac's Golf Cart LFP
LFP48V · 100Ah · ~5.1 kWh
Call for pricing
Need Something Custom?
Don't see exactly what you need? We build custom packs of any size — from portable power to whole-home energy storage. Call or stop by to discuss your project.