# Battery suggestions for Eggfinder mini

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#### ascastil

##### Well-Known Member
I would like some suggestions on what brand battery everyone is using for their eggfinder. I dont trust the one I bought off ebay. Brand names and links would be helpful. Thanks.

TRF Supporter

#### ascastil

##### Well-Known Member
Thanks for the suggestions! Ill look into that battery.

#### OverTheTop

##### Well-Known Member
TRF Supporter
I buy Hobby King every time.

I have had a couple puff up after flights, so keep an eye on that. I think it is the quick change in altitude that gets them. If they go puffy, throw them out.

#### Cl(VII)

##### Chris Bender, Lab Rat
You have to be patient in buying them, and check back occasionally. They were in stock a week ago, and now they are backordered...it happens. They are great batteries for our applications.

#### ascastil

##### Well-Known Member
Hey guys, another question. Can I use this charger that I got with my ebay batteries for the nanotech?

#### cerving

##### Owner, Eggtimer Rocketry
TRF Supporter
Hey guys, another question. Can I use this charger that I got with my ebay batteries for the nanotech?

View attachment 323808

#### ascastil

##### Well-Known Member
Went ahead and ordered a Turnigy 405 charger. Not the fanciest model I guess but it looks way better than the one that came with my ebay batteries.

#### Cl(VII)

##### Chris Bender, Lab Rat
Hobby King US Warehouse has the 300 mAh Turnigy batteries in stock now.

#### ttabbal

##### Well-Known Member
So THAT'S why I had such a hard time getting some of those little batteries.

I ordered 4 this morning. If I had known they were popular here I would have let people know.

#### ksaves2

Remember, if a rocket needs ballast, you can't go wrong with using "usefull" ballast in the form of a heavier battery to supply power to a tracker. (That is of course if you have room in said rocket for it!) Kurt

#### kclo4

##### Well-Known Member
I have some 600mAh 1S lipo batteries that I have been using with a newly assembled Eggfinder mini. It seems to work fine for a basic functional test around the house.
Is there any concerns with using a 1S instead of 2S? Lower range or runtime? I don't know where the voltage cutoff is.

I also tried the same battery on the deployment power of an Eggfiner TRS and it would NOT fire e-matches, so those definitely need the 2S.

#### jnobels

##### Well-Known Member
For small 2s lipos, you can get lipos in the standard 9v package now that work great. These are usually in the 500mah range.

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