Question with Powerex Maha MH-801D charger

[ymmij]

Hi guys, I see that my Powerex Maha MH-801D charger (bought about a month) is kind of weird. The light on the power adapter seems to be flicking instead of continuously ON.

Recently my Sanyo Eneloop batteries (also bought for about a month) seems to be in terrible condition, a "fully charged" set cannot even last properly for my son's toy remote control car.

Anyone has any advice?

When the charger is fully charged, what should be shown on the LCD display? Should it be "Charge Done" and refreshes again, or only "Done".

Thanks.

[ymmij]

Any advice?

[photobum]

I bought the Maha charger around the same time as you did and I don't have the flicking light issue. You may want to bring it back to Eastgear.

I remember I told you before that Sanyo Eneloop are not meant for high drainage usages such as you son's RC toy. NiCd batteries will be a better choice.

[photobum]

Before you bring it to Eastgear, check the power cord, the adapter and the charging unit. There may be a loose connection somewhere.

Also, avoid connecting the charger to a multi-point power outlet.

[ymmij]

Hi photoalbum, thanks for your advice. I bought the charger from MS color, so what should I do now?

As for Sanyo Eneloop, I understand what you mean. The batteries I bought and used straight away after opening was able to last pretty long, now it is not able to last even few minutes.

[photobum]

Since when my nick becomes "photoalbum"? But that's a good one!

Sanyo Eneloop is just another type of NiMh battery after all. NiMh batteries are not recommended for high-power drainage usages such as the high current electric motor used in your son's RC toy. Competitive RC racers have long known to prefer NiCd over NiMh batteries. In general, NiMh batteries don't last as long.

I bought mine from MS Color too (probably the same batch) but I don't encounter the problems you had mentioned. If all else is fails, I think you should make a trip to Eastgear with your faulty charger (I am sure the staffs at MS Color will point you to Eastgear also).

Good luck!

[ymmij]

hi photoalbum i do not know your name so i address you by your nick what is your name?

i actually brought my charger down to eastgear and sure enough the power adapter was faulty and as a result could not enable the charger to charge the batteries properly. i changed both the charger and power adapter.

as of now, i am doing a reconditioning for all my batteries.

by the way, how do we know which devices take high current or voltage? flash? toys? household items?

you mentioned that my son's toy remote control car (below $20 kind) needs high current for its electric motor and so nicd batteries are better. what other devices need high current?

does that mean nimh would be more suitable for devices without high current?

[photobum]

My nick is 'photobum', not 'photoalbum'. Regardless, I am not offended in anyway.

About your son's RC toy car. In general, any electric motor is a high current device. In my opinion, a $20 toy car should not use a $17 set of batteries. NiCd batteries are cheaper and better. These batteries have slower discharge rate, therefore better for electric motors. Most cordless electric drills (even high-end ones such as DeWalt) still use NiCd batteries.

[ymmij]

oh, i must change my spectacles photobum

[muvouser]

Please... NiCD is already long dead. Competitive RC racers uses NiMh since years ago, not NiCD. They do not even make much NiCD anymore. We all started to race with NiMH since alomst 10 years ago.

Originally Posted by photobum Since when my nick becomes "photoalbum"? But that's a good one! Sanyo Eneloop is just another type of NiMh battery after all. NiMh batteries are not recommended for high-power drainage usages such as the high current electric motor used in your son's RC toy. Competitive RC racers have long known to prefer NiCd over NiMh batteries. In general, NiMh batteries don't last as long. I bought mine from MS Color too (probably the same batch) but I don't encounter the problems you had mentioned. If all else is fails, I think you should make a trip to Eastgear with your faulty charger (I am sure the staffs at MS Color will point you to Eastgear also). Good luck!

[ymmij]

oh... thanks for info.

anyway, i should still be getting nimh batteries as i could use them in my flash and other electronic toys too. so far all my batteries are as such.

[photobum]

Originally Posted by muvouser Please... NiCD is already long dead. Competitive RC racers uses NiMh since years ago, not NiCD. They do not even make much NiCD anymore. We all started to race with NiMH since alomst 10 years ago.

NiCds batteries are not dead.... just environmentally unfriendly. There are still many appliances that still use them. For example my DeWalt cordless drill and my SonicCare Electric toothbrush.

Anyway, I have not been racing with battery-operated RCs for a long, long time (more than 10 years in fact). Now, I fly gasoline helicopter, so please excuse my ignorance.

[ymmij]

My new charger is working fine now... now I have learnt that having a blinking Led on the power adapter is not a good sign...

Thank you all for the comments and advices.

[Walplug]

Originally Posted by ymmij Hi guys, I see that my Powerex Maha MH-801D charger (bought about a month) is kind of weird. The light on the power adapter seems to be flicking instead of continuously ON. Recently my Sanyo Eneloop batteries (also bought for about a month) seems to be in terrible condition, a "fully charged" set cannot even last properly for my son's toy remote control car. Anyone has any advice? When the charger is fully charged, what should be shown on the LCD display? Should it be "Charge Done" and refreshes again, or only "Done". Thanks.

Sanyo Eneloop battery potential is 1.5 volts; whereas Powerex Maha MH-801D charger is made to charge nickel cadmiun battery which has a potential of 1.2 volts. So anything above 1.2 volts the charger sees it as charged and will not charge to more than 1.4 volts. Get a proper charger for Eneloop battery! Your batteries are OK but charger not suitable !

[ymmij]

Originally Posted by Walplug Sanyo Eneloop battery potential is 1.5 volts; whereas Powerex Maha MH-801D charger is made to charge nickel cadmiun battery which has a potential of 1.2 volts. So anything above 1.2 volts the charger sees it as charged and will not charge to more than 1.4 volts. Get a proper charger for Eneloop battery! Your batteries are OK but charger not suitable !

Thank you for your comment but I think you are not getting your facts right.

Kindly find out more about this charger before making a misleading statement.

[ymmij]

Some useful information on the mentioned Maha charger and Eneloop batteries.

http://www.digitaldingus.com/reviews...1d/mhc801d.php

http://www.stefanv.com/electronics/sanyo_eneloop.html

fact: Maha Powerex C-801D is able to charge BOTH Ni-Cd and Ni-Mh batteries

fact: Eneloop batteries as like all other Ni-Mh has an average discharge voltage of 1.2v

[Fragnatic]

Originally Posted by Walplug Sanyo Eneloop battery potential is 1.5 volts; whereas Powerex Maha MH-801D charger is made to charge nickel cadmiun battery which has a potential of 1.2 volts. So anything above 1.2 volts the charger sees it as charged and will not charge to more than 1.4 volts. Get a proper charger for Eneloop battery! Your batteries are OK but charger not suitable !

1. the eneloop batteries are all 1.2V.
2. the MH-201D is a NiMH/NiCD capable charger.

[kktan88]

i am getting mine tomorrowfrom ms..

how u solved your blinking lights problem??

[ymmij]

Originally Posted by kktan88 i am getting mine tomorrowfrom ms.. how u solved your blinking lights problem??

went to east gear for a one to one exchange

[CasualSnaper]

why dont get Powerex Maha MH-801D charger straight from East Gear ?
where do get La Crosse Bc-900 Battery Charger in Singapore ?
is it ok to use La Crosse Bc-900 to charge Powerex 2700 ?