Nissan Leaf 2011 SL

All My Nissan Leaf Projects:

• All
• Home
• Charging
• Maintenance
• Strut Caps
• Open Vehicle Monitoring System
• Decals
• Battery Swap
• Put Old Batteries in Trunk
• Inverter Upgrade 3.3KW to 6.6KW
• Annoying Prompt
• Battery ReBuilding
• Battery ReBuilding By Adam
• Vinyl Wrap
• 18650+21700s Trunk Extender
• Range Extender Project

18650 + 21700s Battery Trunk Packs:

Battery Calculator
Just an idea I've been thinking about for a while.
Would people buy them?
What do you think?
BONUS! There is Cooled Radiator Fluid already in my trunk!

• Most Leaf drivers *love* their cars, but *fear* their range loss over time.
• Nissan refuses to make new modules available at a reasonable cost.
• 18650s & 21700s are easy to obtain and build into modules.
• The used-module market is low in stock and risky.
• In Trunk Packs, each cell could be pulled out, individually tested, balanced, and replaced every 5-10 years
• *Passive* aluminum heatsinks, or *Active* cooling tubes could be added.
• I just came up with these rough cost estimates, not a real product.

Each 18650s3.2Ah 3.7Volts 12.5Wh 1C 2.85A, 45grams, $3.15

Each 21700s5.0Ah 3.7Volts 17.3Wh 1C 9.60A, 70grams, $4.99

$300 Module Made out of 18650s:

Outer Size: 303 x 223 x 36mm4 x 12 x 2 = 96
96 18650s, 260 x 216 x 36mm of Batteries
Configured 2S48P = 7.5V, 34Ah 600Whr, 1.08kg

$630 DOUBLE Module Made out of 21700s:

Outer Size: 303 x 223 x 68mm14 x 3 x 3 = 126
126 21700s, 294 x 210 x 63 mm of Batteries
Configured 2S73P = 7.4V, 5.0Ah 1263Whr, 8.8kg

$6174 23KW Trunk Pack of 18650s:

1930 18650s, Configured 96S20P = 363V, 64Ah 23KWhr, 88kg

$6720 23KW Trunk Pack of 21700s:

1344 21700s, Configured 96S14P = 363V, 70Ah 23KWhr, 94kg