Lithium-Ion Battery

Basics

• A Type of Electrically Rechargable Battery
• Has one of the highest power desities
• Can have a Battery Fire issue, also lithium availability may become an issue in the future (although recycling is possible)
• Most common form (pre-battery pack unit) OTS is the 18650 Battery (similar in form factor to a "AA" type battery, different specs though)

Depth of Discharge

Discharging only a little bit and recharging prolongs life - 10 years if 10% discharge, 6 years if 25% discharge

Cost

• $56 for 100 of 20Wh batteries - 3.7V, 5.8Ahr. 2000Whr for $56? [1]

Review

This is a good review. Standard is 2200 Ah for 16850 cells, 3.7 v - 8 Wh of power. [2]

• Ultrafire at 1 Ah and 4A is worth the $1.2. Cheaper than all others, for half capacity.
• Further - if it's 1 Ah and 72 cents - it appears to be 370W for $67, or under $200 per kW? Definitely would be worth it.

Protection

• Protected vs unprotected - [3]

Not High Drain

• 2600 advertised - [4]

Internal Links

• Sodium-Ion Battery (A Similar Chemistry, With Similar Use Cases, but can be made with Sewater / (Non-Lithium) Brine Wastewater sourced Sodium, rather than pit mine / brine mine sourced lithium

External Links

• The Wikipedia Page on Lithium-Ion Batteries