Today's Message Index:
----------------------
1. 02:43 PM - Re: Re: Excessive Amperage (Paul Eckenroth)
2. 07:30 PM - Re: Re: Excessive Amperage (Charlie England)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Excessive Amperage |
David
You refer to gizmos made to take control of the charge rate such that it
stays under the alternators design limits. Can you be more specific as to
what these gizmos are. I have been looking for something like this to try
and keep the stator in my Revmaster engine from burning up again. I
believe that controlling the output is the key.
Thanks
Paul
On Sun, Jul 2, 2023 at 2:19=AFPM skywagon185guy <skywagon185@gmail.co
m> wrote:
> Battery....Lithium
>
> Joe makes a very good point about the potential of Lithium base batteries
> to potentially cause charging problems.
> The other side of this combo is that when a "normal" alternator is runnin
g
> at idle speeds the Lithium is able to handle receiving a very heavy curre
nt
> charge rate such that the alternator could easily overheat and burn some
> internal part due to lack of cooling for such a heavy current draw. There
> are gizmos made to take control of the charge rate such that it stays und
er
> the alternators design limits.
> The marine and RV folks use these controllers to safeguard their expensiv
e
> stuff.
> David
>
> On Sun, Jul 2, 2023 at 6:02=AFAM user9253 <fransew@gmail.com> wrote
:
>
>>
>> Below is from https://earthxbatteries.com/faqs/
>> I just installed my EarthX battery in my aircraft and started the engine
>> and my charging amps was really high, is this normal?
>> .
>> Yes, this is normal. A lithium battery can and will accept a much higher
>> charging current than an equal size lead acid battery.
>> If your battery is not fully charged, your alternator can potentially
>> output a current equal to
>> or slightly above the alternator=99s rating for a few minutes to
top the
>> battery off.
>> . . .
>> You must use a lithium battery that is designed to handle the current
>> from the alternator
>> or you can damage the battery, cause premature failure or possible even
>> cell rupture.
>>
>> --------
>> Joe Gores
>>
>>
>>
>>
>> Read this topic online here:
>>
>> http://forums.matronics.com/viewtopic.php?p=511019#511019
>>
>>
>>
>>
>>
>>
>> ==========
>> -
>> Electric-List" rel="noreferrer" target="_blank">
>> http://www.matronics.com/Navigator?AeroElectric-List
>> ==========
>> FORUMS -
>> eferrer" target="_blank">http://forums.matronics.com
>> ==========
>> WIKI -
>> errer" target="_blank">http://wiki.matronics.com
>> ==========
>> b Site -
>> -Matt Dralle, List Admin.
>> ="noreferrer" target="_blank">https://matronics.com/contribution
>> ==========
>>
>>
>>
>>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Excessive Amperage |
Assuming it's a 'dynamo' (permanent magnet) style alternator, and
assuming that the rectifier/regulator is not a 'shunt' type regulator,
then just about any switching style current regulator should do the job
as long as it's designed to handle the level of current you want. The
one in the link below is rated for 300 watts, which would be around 20A
@14.7 volts. I'd derate it to lower than that to ensure some level of
reliability, and I'd certainly provide forced air cooling.
https://www.amazon.com/Anmbest-Converter-Adjustable-Regulator-Protection/dp/B07R832BRX/ref=asc_df_B07R832BRX/?tag=hyprod-20&linkCode=df0&hvadid=366402536789&hvpos=&hvnetw=g&hvrand=712971344780976433&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9013892&hvtargid=pla-786421359827&psc=1&tag=&ref=&adgrpid=75347436439&hvpone=&hvptwo=&hvadid=366402536789&hvpos=&hvnetw=g&hvrand=712971344780976433&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9013892&hvtargid=pla-786421359827
On 7/7/2023 4:42 PM, Paul Eckenroth wrote:
> David
> You refer to gizmos made to take control of the charge rate such that
> it stays under the alternators design limits. Can you be more
> specific as to what these gizmos are. I have been looking for
> something like this to try and keep the stator in my Revmaster engine
> from burning up again. I believe that controlling the output is the key.
> Thanks
> Paul
>
> On Sun, Jul 2, 2023 at 2:19PM skywagon185guy <skywagon185@gmail.com>
> wrote:
>
> Battery....Lithium
>
> Joe makes a very good point about the potential of Lithium base
> batteries to potentially cause charging problems.
> The other side of this combo is that when a "normal" alternator is
> running at idle speeds the Lithium is able to handle receiving a
> very heavy current charge rate such that the alternator could
> easily overheat and burn some internal part due to lack of cooling
> for such a heavy current draw. There are gizmos made to take
> control of the charge rate such that it stays under the
> alternators design limits.
> The marine and RV folks use these controllers to safeguard their
> expensive stuff.
> David
>
> On Sun, Jul 2, 2023 at 6:02AM user9253 <fransew@gmail.com> wrote:
>
> <fransew@gmail.com>
>
> Below is from https://earthxbatteries.com/faqs/
> I just installed my EarthX battery in my aircraft and started
> the engine and my charging amps was really high, is this normal?
> .
> Yes, this is normal. A lithium battery can and will accept a
> much higher charging current than an equal size lead acid battery.
> If your battery is not fully charged, your alternator can
> potentially output a current equal to
> or slightly above the alternators rating for a few minutes
> to top the battery off.
> . . .
> You must use a lithium battery that is designed to handle the
> current from the alternator
> or you can damage the battery, cause premature failure or
> possible even cell rupture.
>
> --------
> Joe Gores
>
--
This email has been checked for viruses by Avast antivirus software.
www.avast.com
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|