Looking for entry level DIY ideas

Click For Summary
SUMMARY

This discussion centers on the safe and effective use of 48V lithium-ion batteries previously utilized in a pedicab's front hub motor. The participants emphasize the importance of understanding battery specifications, particularly energy storage capacity measured in Amp-hours, before attempting DIY projects. Due to the inherent risks associated with lithium-ion batteries, especially fire hazards, the consensus is to avoid complex DIY projects for beginners. Instead, users are encouraged to explore standard products that can utilize these batteries, such as e-bikes or scooters.

PREREQUISITES
  • Understanding of lithium-ion battery specifications, including voltage and Amp-hour capacity.
  • Basic knowledge of electrical safety and fire hazards associated with batteries.
  • Familiarity with DIY electronics and battery management systems.
  • Research skills to identify compatible products for battery repurposing.
NEXT STEPS
  • Research standard products that utilize 48V lithium-ion batteries, such as e-bikes or scooters.
  • Learn about battery management systems (BMS) for safe operation of lithium-ion batteries.
  • Investigate safe DIY battery pack construction techniques and best practices.
  • Explore energy storage solutions and UPS systems compatible with lithium-ion batteries.
USEFUL FOR

This discussion is beneficial for DIY enthusiasts, hobbyists interested in battery repurposing, and individuals seeking to safely utilize lithium-ion batteries in various applications.

TechDIYaspirant
Messages
12
Reaction score
3
TL;DR
I have two 1000w 48v lithium ion batteries that are sitting unused and want to put them to use.
I'm looking for a way to use these batteries that is safe and also useful. I've looked into buy inverters to turn them into portable battery packs but am out of my depth and don't want to create a device with serious potential fire hazards without thoroughly understanding the ins and outs and proper precautions.

The batteries were previously used to power the front hub motor or a 29" bicycle wheel used on a pedicab/cycle rickshaw.

I also have bike and a non-working moped that I've thought might make good projects at some point for electical conversion but those are both on the more advanced side. Also thought of expanding the capacity of an UPS system for my PC but don't really know where to start.

Any other good ideas about how to put these to use or suggestions on how to approach any of the above?
 
Physics news on Phys.org
Welcome to PF.

AFAIK, batteries aren't usually rated in their power output. More common is the output voltage (which you list as 48V) and Energy storage capacity (usually in Amp*hours or milliAmp*hours). Do your batteries list anything like that? What are the manufacturer and model number?
 
Well, to be frank, some of the other Mentors and I are not comfortable suggesting DIY projects for a beginner and moderate size Li-Ion batteries. A quick Googe Images search for Li-Ion battery fire returns way too many hits:

https://www.google.com/search?q=Li-...EAoAECoAEBqgELZ3dzLXdpei1pbWewAQo&sclient=img

Instead, try to find standard products that use this battery. Maybe you can find some used scooters or e-bikes or whatever that could benefit from fresh batteries.

Thread is closed for now. Please stay safe.
 
  • Like
Likes   Reactions: anorlunda, Rive and hutchphd

Similar threads

Li-ion Discharge Rates: Answers to DIY Battery Jump Starter Questions
  • · Replies 3 ·
Replies
3
Views
2K
Can Li-ion and NiMH Battery Packs Coexist Safely in Bicycle Lighting Systems?
  • · Replies 2 ·
Replies
2
Views
2K