Big Rob is a very hungry robot. As you see with his big mouth he needs a lot of energy. To fulfill his need for energy I had to find a good solution for the robot. At the end I decided to buy a “Victron Energy – Peak Power Pack”. The power pack has 384 Wh, 12V and 30 Ah. I would say that is enough power for a ride in the garden. Heavy lead acid batteries as normally used in cars are too big and well too heavy. I decided to buy solution with Lithium-Ionen technology which could store a lot more energy with less weight and smaller in its dimensions then a normal lead acid battery. I thought, okay which technology is BMW and Tesla using in their electric cars. At the end there was only one all in one solution for my Raspberry Pi robot. A Peak Power Pack (PPP) with Lithium-Ionen LiFe04 technology for security reasons with enough energy for long operation time.

Look how happy the Big Bot is with his new peak power pack. I think he is smiling…

Big Rob - Raspberry Pi robot Victron Energy Peak Power Pack power supply

Big Rob – Raspberry Pi robot Victron Energy Peak Power Pack power supply

Technical Specs

The Peak Power Pack was developed for caravan movers which need a lot of power to move a caravan. Inside the power pack is a built in charger and energy management system. This enables the power pack to be charged from the car electrical system during the travel with the caravan. But you could charge the power pack from different sources. One could be a solar cell which maybe from interest for my robot as well or from a wall plug which is included in the package. You have many ways to charge the power pack and this makes my robot very flexible.

Peak Power Pack, 12,8Volt / 40Ah / 512Wh, Lithium Ionen, LiFePO4
Preis: EUR 654,90
4 neu von EUR 654,900 gebraucht

solide Leistung in Solar- sowie anderen Anwendungen

Eignet sich hervorragend in Anwendungen bei denen der Ladestrom sehr unregelmäßig sein kann, wie es zum Beispiel im Solarbereich der Fall ist. Tiefentladung und unzureichendes Aufladen, bzw. unregelmäßige Zyklen würden einer herkömmlichen Blei-Säure Batterie schnell schaden zufügen. Für das auf LiFePO4 basierende PPP-40 Peak Power Pack 40Ah stellt eine solche Benutzung hingegen kein Problem da.

Smarter Energiespeicher: VE.Direct kompatibel

Über den integrierten VE.Direct Anschluss können Sie Ihr Peak Powerpack 40Ah 12,8V über den optional erhältlichen Victron VE.Direct Bluetooth Smart Dongle mit Ihrem App fähigen Smartphone oder Tablet verbinden. Alternativ dazu kann auch das VE.Direct zu USB Interface Kabel angeschlossen werden um das Power Pack mit dem Computer oder Notebook zu verbinden.

wichtige Technische Merkmale des PPP-40 40Ah 12,8V Powerpacks:

  • Überwachung- und Steuerung: über mitgelieferte Drucktaste mit 2 Leds
  • Kommunikation: über integrierten VE.Direct Anschluss

Lieferumfang:

1x Victron Energy Peak Power Pack PPP-40 12,8V 40Ah 512,Wh, MPN PPP012040000
1x Montagegurt
1x Stromadapter
1x Stromkabel
1x Drucktaste mit Kabel (2 m) und zweifarbiger LED
1x Bedienungsanleitung

Such a Peak Power Pack maybe also from interest for offgrid usage. Maybe if you have a hunting lodge with solar cells you could build your undependent energy supply. The next picture shows the 30Ah Victron Peak Power Pack I am using in my robot with the charging device.

Peak Power Pack Lithium Ionen Li FePO4 Zellen 6 small

Peak Power Pack Lithium Ionen Li FePO4 Zellen 6 small

Peak Power Pack robot assembly

I assembled the power pack into my robot and connected all wires. To be on the save side I used a 8A fuse to protect the power pack from a short circuit. I do not see an explosion problem of the power pack because it is built out of Lithium-Ionen LiFe04 cells but to protect the electronics inside the power pack like the charging system and battery management system. The elektronics inside the PPP have their own fuse. But it is not possible to replace this fuse. I thought an additional external fuse could additional protect my Power Pack.

I also included a main switch right after the power pack to shut down the whole robot system if needed.

Robot Peak Power Pack Lithium Ionen Li FePO4 Cell

Robot Peak Power Pack Lithium Ionen Li FePO4 Cell


E-Book – build a remote controlled robot with a Raspberry Pi


With this e-book you can create step by step, your unique remote controlled car. The interaction of hardware, electronics and software are explained with the help of concrete examples. This makes it easy to understand the more complex parts of the project.
The e-book is available as PDF.

buy now your e-book

The e-book costs 14.90 USD inkl. 19% VAT. (Germany).
When ordering from other countries the gross price may vary since then other VAT rates apply.

Build a remote controlled car with a Raspberry Pi

Summary

The robot chassis is big enough for the power pack. I only had to change the arrangement of all the electronic components. At the end everything was in place and the robot started at the first time and was driving around our living room. Now I have to test the power pack and check how long I could drive around in the garden. I think I will have time for such a test in a few weeks.


Article list - Big Rob:

Big Rob – Raspberry Pi robot
Big Rob – Raspberry Pi robot power train
Big Rob – Raspberry Pi robot motor driver BTS7960B and Python program
Big Rob – Raspberry Pi robot outdoor camera
Big Rob – Raspberry Pi robot with differential GPS
Big Rob – Raspberry Pi robot with nice teeth
Big Rob – Raspberry Pi robot Peak Power Pack power supply
Big Rob – Raspberry Pi robot videos

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