|
Hi. I'm by no means an electronics expert, just a Dad with a problem :) So please help ! My son's radio controlled car - which he loves - needed a fresh battery pack. It is 5 x 1.2V AA cells in series. However I used higher mAh cells 2500mAh for longer run time. The charger that came with the toy is only 6V 250mAh, as the original battery pack was much lower mAh. It is struggling to charge the new pack I made, gets quite hot and the pack does not charge. What spec charger do I need, and where can one purchase these things, possibly online ? Thanking you in advance ;) |
July 01, 2020 |
|
I use a LiitoKala (https://www.banggood.com/Liitokala-Lii-402-Micro-USB-DC-5V-4Slot) and an Energizer NiMH charger (I bought it at a Canadian Tire). The first one recognize many type of battery, automatically, while the later is specialized for NiHM batteries AA and AAA size only. Your charger may get hot because it is for the wrong batteries types only (NiMH, Lithium, or some older technology of rechargeable batteries) and use an inappropriate mode/sequencing/amperage/voltage. |
July 03, 2020 |
|
Thank you so much ! I will definitely follow your links, and your advice makes sense. Yes the new batteries I used to make the pack are NiMH, so the charger was probably for NiCD batteries. I appreciate. |
July 04, 2020 |
No answers yet. Contribute your answer below!
You must log in or create an account (free!) to answer a question.
Anyone can ask a question.
Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.
CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.
We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.
Acceptable Questions:
Unacceptable Questions:
Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!
CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.