Hi, I realise battery chargers get warm but mine seem rather warmer than I am used to. I have never had ebike chargers before, just comparing to other tyoes.
Thanks
Thanks
Battery chargers
- Thread starter cyclenut1952
- Start date
I tend to think like you, hot electronics = shorter life!
And some do get very warm, so only use them in a well ventilated position, perhaps on a "rack" that allows cooler air to be sucked up from directly underneath.
Never cover a charger with anything.
The charger on my previous bike got quite hot, but ran fine (excepting for a cable break in the connector that I had to repair once) for over 6 years in total.
I could still hold it in my "sensitive skin" hands though.
My test of temperature, so eternally it was under 40°C....My current bike, the charger has a minuscule tiny fan built in, very quiet, and naturally ventilation holes, so it barely gets warm at all.
Both chargers were 36 Volt Li-ion chargers and both were max 2 amp.
Maybe you can find on ebay either a new charger with fan, or maybe add a small external fan?
I myself, if it got really hot (hotter than my skin will handle), might get tempted to open a charger up, once the guarantee has finished, and add a tiny external fan, and a few small holes to allow cool air in and warm air out. But only do that if you have all the necessary knowledge to do that safely.
Something like this may work:-
1Pc 4010 40MM 40*40*10 Cooling Fan 12V 0.8W 0.06A 3Pin Cooler Heatsink Mini ~G1 | eBay
Find many great new & used options and get the best deals for 1Pc 4010 40MM 40*40*10 Cooling Fan 12V 0.8W 0.06A 3Pin Cooler Heatsink Mini ~G1 at the best online prices at eBay! Free delivery for many products!
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regards
Andy
D
Deleted member 25121
Guest
Does it get too hot to touch, hot to touch or just warm to touch?
Is there a rating for the output voltage and current on it?
Is there a rating for the output voltage and current on it?
Hi, appreciate those replies, I will look at ratings etc , still under warranty but fan idea sounds useful.
Will post ratings when I’m home
Many thanks
Will post ratings when I’m home
Many thanks
They all get hot no matter their rating. The disadvantage of the fan cooled ones is if the fan fails, they will fry, because they are designed to run cooler. This thread shows some ideas on mods for better cooling.
www.pedelecs.co.uk
Basic Sans charger mods/adjustments.
Over the years I have acquired 4-5 Sans type chargers for 36v and have a pair set up for 41.2v charging (not balance), every 6- 10 charges I fully balance with a standard 42v charge to ward off an imbalance that may occur. The Sans will charge 10 -12s as it has a voltage adjustment range of...
www.pedelecs.co.uk
Over a great many years, I have had the completely opposite experience with fan cooled power supplies, mainly with regard to computers, chargers and other equipment.They all get hot no matter their rating. The disadvantage of the fan cooled ones is if the fan fails, they will fry, because they are designed to run cooler. This thread shows some ideas on mads you can do.
Basic Sans charger mods/adjustments.
Over the years I have acquired 4-5 Sans type chargers for 36v and have a pair set up for 41.2v charging (not balance), every 6- 10 charges I fully balance with a standard 42v charge to ward off an imbalance that may occur. The Sans will charge 10 -12s as it has a voltage adjustment range of...
The fan cooled ones definitely last far longer, as even the fan is not really stressed at all.
Furthermore, a DIY hobbyist could pick a fan design with a sensor included (many types of CPU fan for example), that warns if the fan does not turn for any reason, and it could even be so arranged, that the power supply/charger, remains in a state where no heat is actually generated, e.g. not charging or supplying current!
But as with just about anything, if the design is of poor quality in the first place, then even fan cooled supplies will not last forever, but still far longer than the same supply without a fan!
I have over 50 years of firsthand experience with power supplies, chargers and similar (I used to design chargers for my own use), and I would always recommend fan cooled, as those without are definitely going to fail first, as you said, they do get hot!
Naturally, WHERE they are used could also play a role and charging outside, where rain water might get into a fan cooled supply, will definitely shorten the life of any electro-mechanical or electronic components drastically...
One has to be a bit careful.
Regards and a happy new year
Andy
D
Deleted member 25121
Guest
I suggest you leave the charger alone, when its providing the full charging current it might be giving off over 20W of heat this will make the case feel quiet hot.
When the battery is fully charged or disconnected the charger should feel cool, you might want to check that.
When the battery is fully charged or disconnected the charger should feel cool, you might want to check that.
i would recommend none those days are long gone
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Wow ok thanksi would recommend none those days are long gone
Electric Mountain Bike Network
The Electric Mountain Bike Network (EMBN) is dedicated to igniting your passion for electric mountain bikes (eMTBs) by taking your riding further, faster and...
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