Take $50 off to get an EnerCore Clear Cased Lithium battery as a perfect gift for our dad.
Specifications
Rated Capacity: 100Ah
Nominal Voltage: 12.8V
Cut-off Voltage: 9.2V
Energy: 1280Wh
Max. Charge Voltage: 14.4~14.6V
Max. Charge Current: 50A (≤ 0.5C)
Max. Continues Discharge current: 100A (≤ 1C)
Max. Discharge Current: 2.3 Seconds 200A
Outer Package Material: ABS/PVC/Iron Box
Battery Protection: Over-charge, Over-discharge, Over-current, and short circuit
Cycle Life: 2500 cycles @90% D.o.D, remaining 80% Capacity
Internal Impedance: ≤50mΩ
Operating Temperature: Charging: 0~55℃ Discharging: -20~60℃ Storage: -20~60℃
Size: 306x169x208mm (LWH)
Weight: 11.4kg
Design Lifespan: 10~15 years
Manufacturer Warranty: 3 years
"Other Brand Battery" contains "Lots of harmful substances" in the comparison chart.
This seems like a well thought out and accurate criticism.