battery

[Will5455]

Does anybody know which battery is ok to charge in a encloser.

[Imperf3kt]

Any. Just be sure to read either the data sheet for it (if you bought it new and it has one) or otherwise google safe temperature limits of generic batteries.

Regardless of what kind of battery you use, you'll need to allow it some way to dissipate heat, vent holes are usually enough, unless you are pushing the Pi hard and it is also heating up the ambient temperatures, in which case, a fan may be necessary.

[Will5455]

thx!
I just don't like the idea of having to take out a battery every time it dies. I also want to explore smart home capability's and taking out the battery for auto-charge sounds difficult.

[Imperf3kt]

To clarify my prior reply somewhat, a battery alone is not enough. You can also need to convert the voltage to 5v and ensure rye battery can be safely used at a high current.

Can you say what you wish to use your Pi for? It will make a big difference to the kind of battery suitable for your needs.

[drgeoff]

And the run-time you need.

[Will5455]

I am going to use it for a dfrobot devastater and run it for quite a while probably

[drgeoff]

I am going to use it for a dfrobot devastater and run it for quite a while probably

If you will "run it for quite a while probably" you will probably need quite a large battery.

[Will5455]

true and price is forever the curse so lets see. I am probably going to use a zero or zero w maybe 3a+ and a engine controller issue is I would have to step down 6volt to 5v because the engines are 6v so maybe I should use 2 batterys one for the pi one for the engines?

[Imperf3kt]

Definitely use two batteries.
While one battery might cut it, you'll get a lot of noise from the motors that the Pi will Not like.

What is a devastator? Is it some kind of battle robot? Can the batteries be damaged?

[Will5455]

Link alert!
https://www.dfrobot.com/product-1477.html

[Imperf3kt]

Ah interesting.
In that case, you'll probably want either lithium ion / lithium polymer batteries and a suitable buck/boost charger module, or the safer NIMH rechargeables + suitable buck and charging circuit.
Other battery technologies may work, but are likely too heavy or wont last very long or deliver the current needed.
Alkaline batteries would work okay (such as AAs or Cs etc) but you'd need many which would add a lot of weight and they're not rechargeable.

I'll leave the specifics to others more qualified than myself.

Good luck!