The Starter Robot looks like it is using the Orion board and the motors are a bit bigger. The battery pack (which takes 6 AA batteries, so the 3.7v ones won’t work. The battery packs seem to have the batteries lined up in series, so you need 9VDC (6 * 1.5V) to power everything properly. I saw this one on eBay which might work.
@danjger, can you offer any insights? You’ve got experience with the Orion board and I don’t.
I’d put a 3cell lipo 11.1v on an orion board.
http://learn.makeblock.cc/orion/
Oh cool, the learn site is back up (it was down the last time I tried to get there).
Thanks!
thanks @danjger ! so if i use an 11.1v lipo, i can just wire on a 2.1x5.5mm male end and i should be fine?
thanks again for all the help
Yea, those are fine. You can pickup some from a local hobby shop too but they might be more pricy.
I’m not sure of the connector but the lipo shoudl work ok. I do wonder if makeblock has installed a low voltage cutoff to prevent issues with over discharge. You might want to conform that if you think you will run the batteries down.
Hi, can anyone tell me if with 4400 mAh battery the mbot will work fine?
I have big problems in finding the 2500 mAh. An other option would be the 1200 mAh, but for how long will the mbot work? I need to use it for an art installation so it shoul work as long as possible! Thank you to anybody will give some suggestion!
The milliamp-hours (mAh) is more about the storage capacity, i.e., how long the batteries will last. As long as the voltage is the same, you should be fine.
It’s very ironic that the latest mBot comes with a little box to hold a Lipo battery but yet there is no specifications for the battery nor a link of where to buy one. This a very bad marketing.
Hi Aramperez,
Since we do not sell the battery for the mBot, You can buy any 3.7v lipo battery online or local shop and just match the size of the lipo battery box provided.
Size for the battery holder cover:
While these drawings help a little bit, what people need is a battery number. It’s hard to search Amazon for a Lipo battery using just dimensions, e.g. you state that for the IR remote you need a CR2025 battery.
Hi,
You are looking for a 3.7 LiPo battery. The larger the mAh (milliamp hours), the longer the battery will last. I use this one from Adafruit. Amazon, Jameco, etc. all carry these. 
Thanks for the link and information. The Adafruit link states that the battery is 51mm x 65mm x 8mm which does not appear to fit in the battery box as it exceeds the recommended size of 50mm x 35mm x 10mm. I have a hard time understanding the reasoning for including a battery box but no link to a battery that fits inside the box, but that’s just me.
@ tec_support
Your suggested size of the lithium battery does not fit in the provided box. The inside measurements on your drawings are 49.2 x 32 and your suggested battery is 50 x 35. So that is too big.
LiPo batteries come in several sizes depending on amount of mAh the battery supports. I would suggest spending some time at Adafruit, et al., to find a battery that fits the available space. I’ve got the 1.0 mBots, so the LiPo I mentioned just slides in under the mCore board.
Hi MJP,
Since the external dimensions of the battery holder is 37, the above battery size should be ok for this battery holder since we use the lithium battery with this size and it can be putted into the battery holder.
The baterries with the suggested size or smaller can be putted into the battery holder
Try searching for 103550 Lipo (or 103450 Lipo) batteries.
You’ll find ones like this on AliExpress.
I have found 3.7v lithium ion batteries that fit into the container provided by make block. https://www.dfrobot.com/index.php?route=product/product&product_id=437&search=lithiu
They are only 1000mAh but seemed to work well so far and are only about $9.00 each.
