Suitable 4.5V - 5.5V LiPo batteries

[KiraKiraSoul]

Hi all,

I need to run a 5V fan from the same power supply as my LoPy4 board. The fan should run between 4.5V and 5.5V so I'm hoping to use this 4.8V LiPo battery:

https://cpc.farnell.com/enix-energies/tgh9018/battery-nimh-4-8v-1500mah/dp/BT06246?mckv=sXL3yKkm6_dc|pcrid|224680288544|kword||match||plid||slid||product|BT06246|pgrid|48556615353|ptaid|pla-436764189069|&CMP=KNC-GUK-CPC-SHOPPING&gclid=Cj0KCQjw3uboBRDCARIsAO2XcYAPUypXBJtv25-GBkLMzi-nm-RlsJFWWKYq8teibCKKjpR0lNYhA-waAviYEALw_wcB

Can anyone advise on if this should work with the LoPy4 and LiPo charging circuit?

I'd also be happy to hear alternative rechargeable batteries if you know of any.

Thanks!

[robert-hh]

@KiraKiraSoul That's not a LiPy battery, it is a NIHM battery pack. You can run the Lopy4 from it, but it will not be charged.
Better use a single 18650 LiPo cell (3000 mAh typcially) and use a step-up converter to get 5V for you fan (e.g. Pololu U1V11F5)
Edit: you may also find fans which run at 3.5 V and less. That may be easier.