knotian Posted May 11, 2019 Posted May 11, 2019 Since Lego has eliminated the rechargeable battery box I need an alternative. How can I wire a 9volt power supply to a regular battery box to run PF motors? My models are stationary so 110 is a practical solution. Quote
howitzer Posted May 11, 2019 Posted May 11, 2019 Why not use AA-equivalent rechargeable batteries? It's of course a bit of hassle compared to constant supply, but it's also easy and needs no modifications of any kind. Quote
Berthil Posted May 11, 2019 Posted May 11, 2019 If your models are stationary why not use a 9V train power supply with adapter cable like everybody does running Great Ball Contraptions? Quote
dr_spock Posted May 12, 2019 Posted May 12, 2019 I did this years ago to run my GBCs. I didn't have to buy anything since I had the parts lying around. I am still using those modified battery boxes at events. Quote
Berthil Posted May 12, 2019 Posted May 12, 2019 (edited) 2 hours ago, knotian said: Berthil - only one available in US Sorry, didn't know that. Seems that one is sold now, nothing in the US now. Edited May 12, 2019 by Berthil Quote
Wolf_Zipp Posted May 12, 2019 Posted May 12, 2019 (edited) I made it in this way: IMG_20180211_195406 by Wolf Zipp, auf Flickr I connect the 2 left wires to minus ( - ) and the 2 right wires to plus ( + ) pole of the power supply . Be sure not to Change the poles !! IMG_20180211_235027 by Wolf Zipp, auf Flickr I connect it to a IR Receiver to use it. I´ve not tested with a Switch , but I think it will work also . Edited May 12, 2019 by Wolf_Zipp Quote
Captainowie Posted May 13, 2019 Posted May 13, 2019 There are plenty of (historical) posts of people having done exactly that. If you're careful, you can even do it in such a way as to still allow the box to be used with batteries. Quote
doug72 Posted May 13, 2019 Posted May 13, 2019 19 hours ago, knotian said: Berthil - only one available in US There are 15 available on Brickowl from Austria. Quote
ben20 Posted May 17, 2019 Posted May 17, 2019 (edited) On 5/11/2019 at 7:36 PM, knotian said: Since Lego has eliminated the rechargeable battery box I need an alternative. How can I wire a 9volt power supply to a regular battery box to run PF motors? My models are stationary so 110 is a practical solution. How do you mean 'to the battery box'? It's better to couple a pf plug to a custom battery, saves space :) https://scuttlebots.com/2014/03/02/lego-pf-hacking-wiring/ Edited May 17, 2019 by ben20 Quote
knotian Posted May 17, 2019 Author Posted May 17, 2019 Ben20 I'd like to use wall power rather than batteries on my stationary models. Thanx, Ed Quote
ben20 Posted May 17, 2019 Posted May 17, 2019 21 minutes ago, knotian said: Ben20 I'd like to use wall power rather than batteries on my stationary models. Thanx, Ed Principe stays the same, just make sure 9v output and no 230 :D But the old lego train regulator or the control center is the best option Quote
Mechbuilds Posted May 17, 2019 Posted May 17, 2019 1 hour ago, ben20 said: Principe stays the same, just make sure 9v output and no 230 :D But the old lego train regulator or the control center is the best option And use direct current instead of alternating current.. 9v DC is quite different than 9v AC. Quote
Captainowie Posted May 19, 2019 Posted May 19, 2019 The train controller has an onboard bridge rectifier, and will work fine with either AC or DC. I don't know if the Control Centre has a port for external power, but if it does I'd bet it would be the same. Quote
pleegwat Posted May 19, 2019 Posted May 19, 2019 I believe Control Center I did not have an external power port, but I do not own one. Control Center0 II (the mounted helicopter/t-rex) comes with a 10V AC power adapter, so the rectifier must be inside the control center. Quote
Philo Posted May 19, 2019 Posted May 19, 2019 Confirmed, control center II has an ac/DC input. The cc I was batteries only. Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.