Building a 48V 42Ah 13s15p 18650 lithium-ion cells battery pack. Made from rejected 10s4p Bosch packs.- 13 serial, 15 paralleled 2850mAh 2C max LG 18650 Lithium-ion cells.- Spot welded 0.15mm x 7mm 99% pure nickel strips.- 30-60 Amps BMS.- 12 AWG Wires.- 230mm diameter Battery Shrink Wrap- 12V - 48V (2s - 14s) configurable battery meter.- 50A anderson connectors for charge and discharge*Update: Battery is finally tested. It was unexpected that I can't even notice it is really charging touching at it. It charges at the same room temperature at 0.15C (6A). Discharge rates between 10A - 20A doesn't also reach warmness (0.5C max). Charger (fan built-in) gets pretty hot during CC phase (~5 hours) then only warm at CV phase.*For EV performance info: Tested 100Km of mixed torture test ride (uphill downhill rush, hard accelerations and slow downs, full throttle half the rode, speed between 20-25 mph, all at night with real 15W lights) then battery Voltage remained at 48.1V that makes a whole 200KM of night hardest consumption range. (EV is not human powered built-in)


<p>worst &quot;&quot;&quot;instructable&quot;&quot;&quot; EVER</p><p>do you even understand the concept of this site ?</p>
<p>Hello, just out of curiosity, how much did this cost?</p>
Can you please give me a diagram of this?. I'm making a battery pack for my electric go kart and I'm seriously stuck on where to start.
<p>Contact to us here: www.facebook.com/evmadrid1/ we will try to help you! :)</p>
<p>So about 200 cells, each 50 grams comes out to about 10kg. That's pretty awesome for a 200km range - 20km per 1kg of battery.</p>
<p>Absolutely outstanding job. Well done</p>
<p>Heyy EVMadrid</p><p>will it be seutable for </p>2015 latest 48v 750w 8fun/bafang motor
<p>More than enough. For a 750W motor pulling it at 750W continuously at 48V, With just a 48V 15Ah li-ion battery, you would be discharging at 1C continuous max, and that is a very efficienct ratio for li-ion (&gt;95% of efficiency)</p>
<p>Spec:</p><p>1. Voltage: 48V current <em><strong>Limit:25A</strong></em></p><p>2. Power: 750W</p>
<p>Hard work got you good fruitful result. Salute!</p>
<p>That is some piece of work, Damien. It looks very professional and you ought to be very proud. How much does that weigh? I'm just curious.</p>
<p>Thank you! 9 kg :)</p>
<p>That's an impressive battery pack!</p>
<p>thank you :)</p>

About This Instructable




Bio: We like to create, custom battery packs and electric vehicles. We share our experiences to inspire others!
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