WowWee Rovio Battery Specifications

Rovio is shipped with a 3000 mAh battery pack, and will need charging before you can begin using Rovio. If you are eager to set up your new Rovio right away, just put your dock near your PC and leave Rovio sitting on the dock while you perform the setup process.

[[ad]]

Rovio's battery pack is composed of 5 sub-'C' size cells with a nominal voltage of 1.2V, for a total of 6V. The blue packs are labeled 5LMH-43SC3000-W-T, and below that is "NiMH 6V 43SC 3000mAH" followed by "PTC".

LMH is the abbreviation for the manufacturer and battery type, in this case, LeoPro and nickel Metal Hydride. 43SC is the size abbreviation for 43mm height sub-C (22mm diameter), followed by '3000' for the nominal capacity.

Connector type: Deans Ultra Plug, a commonly available high performance connector typically used in R/C cars.

When fully charged, these cells will typically read at 1.4V (7V for the full pack). Due to the very flat discharge curve of NiMH cells, the remaining capacity in the pack is difficult to judge from voltage alone. At the end of discharge, cell voltage drops rapidly from 1.2V to 1 or even 0.9V


Quick Links

See More Articles on Rovio

Talk About Rovio on our Forums

Visit the Community Store

Comments

NotSoSureAboutRovio's picture

has anyone made Li-ion batts for the rovio yet? i noticed the Deans ultra plug 2 as well... so, as far as i can figure, get some Lion batts that fit the compartment and has a deans connector, as well as has the proper voltage...

what about charging though?... Lion batts need special chargers, i dont suppose the dock would support that though, would it?

cycmag2282's picture

Question: If the cells are 1.2V, what did you mean by fully charged cells are typically 1.4v (7v for the pack)? Wouldn't that make this a 7V pack instead of a 6? I'm trying to diagnose a charging problem with my rovio where the interface thinks the battery is still fully charged (thus not charging) even though it's not. However, upon checking the voltage of the discharged battery, I get 6.08V. That seems high for a discharged battery considering you said the voltage drops to .9-1v per cell. This might explain why the circuitry thinks the battery is still charged? Just trying to get some numbers straight. Thanks!

Suman's picture

You can upgrade Rovio back up time adding extra NIHM rechargeable batteries on parallel series..for that u need to have battery holder..or u can open Rovi n fixed it inside..I bet..your driving time will be be increase by 1 hr more it depends what amh u use..so folks try yourself....

Mark Bunds's picture

NotSoSureAboutRovio said: has anyone made Li-ion batts for the rovio yet? i noticed the Deans ultra plug 2 as well... so, as far as i can figure, get some Lion batts that fit the compartment and has a deans connector, as well as has the proper voltage... what about charging though?... Lion batts need special chargers, i dont suppose the dock would support that though, would it?

 

I'm going to install a 10,600 mah LIPO battery pack in my Rovio.

http://www.allelectronics.com/make-a-store/category/160050/Batteries-Rechargeable/Lithium-Ion/1.html

Battery packs like these have built-in charge controllers, and also provide some temperature feedback via a built-in 10K NTC. The use of 4 2650 mah LIPO batteries would provide 5300 ma in a much smaller and lighter package than the stock NIMH, so 8 units providing 10600 mah is not out of the question, but a bit of engineering will go into modifying the charging base so that it can charge these batteries while remaining compatible with the charging logic in the base; LIPO batteries don't "report their state of charge" in quite the same way as NIMH because the charge controller on each LIPO battery draws charging current differently than the pure NIMH cell.

If the stock charger in the Rovio base is the "Peak" type, it may be monitoring the NIMH batteries for the proper charge before notifying the charging logic that Rovio's charge is sufficient. This may mean that the battery system will require an additional circuit that will simulate the charging curve of NIMH batteries based on the true state of charge in the LIPO batteries. Not to mention that the charger will have to supply at least 10 amps...

enigmaofmyself's picture

A friend gave me his Rovio and the battery will not hold a charge what-so-ever. Can anyone tell me where I can buy one or exact instructions on how to go about making my own. Please keep in mind I am not an electrical engineer. Just a techie who likes toys.

Any help will be greatly appreciated since Wowee is of no help and they don't even make replacement parts anymore.

PLEASE HELP.

Graeme Barnes's picture

Yes, where aye you? You can try Maplins if in UK or RS/Farnell for the cells. Use NiMh cells to equal the standard battery pack rating and some heat shrink cable. You may be able to get tabbed cells (with the tabs already soldered on) which would make connecting them easier. Wire them in series.. + to - and shrink wrap. Take the old wire from the old pack and solder to the new one. Done!
I cant show a diagram, but a google for a picture of "Batteries in series" should show you how..

doge's picture

hi, bear a Bateias roboquaq of 7.4 v. ?

RichardW30's picture

Hi,

Can anyone comment on whether this would be a good substitute please?
http://www.venom-group.com/Store/NiMH/6v-5000mah-NiMH-Hump-RX-HPI-Baja-RX

6V 5000mAh NiMH Hump Receiver - HPI Baja

Are you looking for more run time from your HPI Baja? Venom's HPI Baja 6V 5-Cell NiMH receiver packs come in either 4200mAh or 5000mAh high power capacities to give you up to 60% more capacity over the stock receiver pack.

*HPI® is a trademark of Hobby Products International, USA Office, Foothill Ranch, CA.

Specifications:
Length: 2.67 in (67.8 mm)
Width: 1.6 in (40.6 mm)
Height: 1.8 in (45.7 mm)
Weight: 12.8 oz (362.9 g)
Battery Type: Nickel Metal Hydride (NiMH)
Plug Type: Tamiya
Capacity: 4200mAh
Cell Configuration: 5-Cell Hump Pack
Voltage: 6V
Amp Rating: 4.2A

Superficially, it appears to offer higher capacity and cheaper than the regular Rovio battery. I guess the small connector could either be ignored or perhaps fed back on itself (so it's permanently "on") and the larger connector would be fairly painless to replace with the Deans connector.

Michaelf33713's picture

After extensive searching I was finally able to find a replacement battery that does not need to be modified. It looks just like the battery that was originally in my rovio. I replaced it a couple of months ago and so far so good. Here is a link to the product page:

http://www.mpfproducts.com/5lmh-43sc3000-w-t-battery-for-wowwee-rovio-wi...

I hope that this helps anyone else that is looking for a quick fix without having to modify connectors or make your own.