Parallel batteries and some queries

[RagingMammoth]

Okay, so I'm looking to be building a box mod of sorts with my dad. I watched a good video on how to make a DNA30 but he used 2 lipo batteries instead of 2 18650s like I would build. My question is, it is safe charging 2 batteries if they are in parallel isn't it?

Keystone #1048 2 x 18650 Battery Holder I'd be using this battery holder.

Another thing I don't quite understand is how to wire the fuses onto the battery wires etc. I won't be a moron and build without fully understanding.

 

[Chegs]

If you're going to wire the batteries in parallel, charging them is just like charging a single cell(although takes lots longer)
I use quad lipo cells in parallel, charged from a single USB pcb. Not the ideal, but works as it should.

posted from a DIY juice cloud

 

[RagingMammoth]

If you're going to wire the batteries in parallel, charging them is just like charging a single cell(although takes lots longer)
I use quad lipo cells in parallel, charged from a single USB pcb. Not the ideal, but works as it should.

posted from a DIY juice cloud

Sorry I didn't reply, had no idea this was commented on.

Thanks for the reply, another query though.

Every tutorial I have seen, people have used different colour wires in each port to match things. Does it matter?

 

[Chegs]

Sorry I didn't reply, had no idea this was commented on.

Thanks for the reply, another query though.

Every tutorial I have seen, people have used different colour wires in each port to match things. Does it matter?

No, just ensure the wires are suitable for the current they're going to be carrying. I've used such as copper brake pipe as the wires, and also single strand copper wire stripped from a 12mm earth cable. The USB charger board has had such as a couple of strands of cat5 cable, the switch has had single lengths of brown positive lead from a kettle, thus showing there are no restrictions on what you use. The main reason for different colours is probably to reduce confusion over what goes where.

posted from a DIY juice cloud

 

[RagingMammoth]

No, just ensure the wires are suitable for the current they're going to be carrying. I've used such as copper brake pipe as the wires, and also single strand copper wire stripped from a 12mm earth cable. The USB charger board has had such as a couple of strands of cat5 cable, the switch has had single lengths of brown positive lead from a kettle, thus showing there are no restrictions on what you use. The main reason for different colours is probably to reduce confusion over what goes where.

posted from a DIY juice cloud

Right- Thanks.

So I plan to buy a Evolv chip and shove it in a hammond box. Should I bother with adding fuses?

 

[fasteddie600]

Yep what he said^!

I like to colour code the wires just so I can see what is going on, and don't make sill mistakes. But it really makes no difference functionally.

Just make sure your conductors are up to the job!

 

[fasteddie600]

Right- Thanks.

So I plan to buy a Evolv chip and shove it in a hammond box. Should I bother with adding fuses?

Personally, no. Always good to add protection, but the DNA has tons of protection built in.

If you are not adding a fuse, make sure everything is nice and secure and fixed especially the battery housing and battery wires.

 

[Chegs]

Right- Thanks.

So I plan to buy a Evolv chip and shove it in a hammond box. Should I bother with adding fuses?

Your choice, I don't add fuses to my mods but they are for my use. If you are happy to risk it, leave them out. If your concerned about the risks, fit them.

posted from a DIY juice cloud

 

[RagingMammoth]

Your choice, I don't add fuses to my mods but they are for my use. If you are happy to risk it, leave them out. If your concerned about the risks, fit them.

posted from a DIY juice cloud

Hm, okay thanks. Just seems really complicated.