battery charger

Submitted: Sunday, Sep 18, 2005 at 06:25
ThreadID: 26546 Views:2705 Replies:8 FollowUps:9
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gid'ay all
i'm thinking of buying one of those small honda 55amp alternator set ups for charging the caravan battery & second vehicle battery if needed.what do youse' reckon are they any good
regards toohey.
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Reply By: Bob of KAOS - Sunday, Sep 18, 2005 at 08:15

Sunday, Sep 18, 2005 at 08:15
Is that the Christie with a Honda motor?
AnswerID: 130631

Follow Up By: Member - toohey - Sunday, Sep 18, 2005 at 08:29

Sunday, Sep 18, 2005 at 08:29
gid'ay bob
thats the one
cheers toohey
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FollowupID: 385125

Reply By: K and S - Sunday, Sep 18, 2005 at 09:18

Sunday, Sep 18, 2005 at 09:18
Hi toohey, I bought an inverter generator and multi stage charger which gives me 12 volt charging and supply and 240 volts but I think if I had it to do over I would have a look at the Honda with the alternator.
I think they a bit noisier but should charge the batteries faster and if you want 240 volts, you can pick up good size inverters on ebay.
The less time you have to run you motor the better I reckon.
Cheers
Keith
AnswerID: 130636

Reply By: Paul - OzRoamer Camper Trailer - Sunday, Sep 18, 2005 at 09:28

Sunday, Sep 18, 2005 at 09:28
toohey
What sort of money are they asking for these?
AnswerID: 130640

Follow Up By: Member - toohey - Sunday, Sep 18, 2005 at 11:23

Sunday, Sep 18, 2005 at 11:23
gid'ay paul
i have'nt seen the 4wd monthly mag for awhile;memory tells me just under $1000.
cheers toohey.
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Follow Up By: Paul - OzRoamer Camper Trailer - Sunday, Sep 18, 2005 at 18:30

Sunday, Sep 18, 2005 at 18:30
The Kipor 1KVA is only about $900

Would these be a better option???
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Reply By: Mike DiD - Sunday, Sep 18, 2005 at 20:33

Sunday, Sep 18, 2005 at 20:33
What size battery will you be charging with it ?

For long life, you should limit charging current to 1/4 of the Amp Hour rating.

So for an N70 size battery you should limit the current to 25 Amps.

That's the sole purpose of Stage 1 of a 3 Stage charger.
AnswerID: 130713

Reply By: Glenno - Sunday, Sep 18, 2005 at 21:44

Sunday, Sep 18, 2005 at 21:44
$900 would buy a lot of diesel to power that 3.0TD generator you have under the bonnet of your truck.
AnswerID: 130728

Reply By: K and S - Sunday, Sep 18, 2005 at 22:20

Sunday, Sep 18, 2005 at 22:20
You can pick a 1000 watt Kipor on ebay for around $600 to $700. I'm happy with mine.
Cheers,
Keith
AnswerID: 130738

Follow Up By: Member - toohey - Monday, Sep 19, 2005 at 17:36

Monday, Sep 19, 2005 at 17:36
thanks for the replies
i'm leaning towards the $900 fuel for the 3.0td genny
cheers toohey
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Follow Up By: Tuff60 - Tuesday, Sep 20, 2005 at 11:07

Tuesday, Sep 20, 2005 at 11:07
$900, doesn't go very far on an engine rebuild. And no load high idle, on a diesel, is no good for it(Typicaly how people charge batteries rather than go for a drive). So if you keep your vehicles for awhile I would suggest another form of battery charger.
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Follow Up By: Alloy c/t - Tuesday, Sep 20, 2005 at 17:03

Tuesday, Sep 20, 2005 at 17:03
Tuff60 ,since when does idleing a diesel hurt ?? if that was the case then every truck driver is wrong to warm/air up and idle turbo down ,stuffs the motor ???????
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Follow Up By: Tuff60 - Wednesday, Sep 21, 2005 at 10:26

Wednesday, Sep 21, 2005 at 10:26
I'm being lazy on this response so I'll copy/paste from other sites.

Under-loading of the engine will cause a high wear rate due to incomplete fuel combustion, loss of lubrication and slobber, resulting in cylinder bore glazing and fouling of exhaust ports and valves, along with insurmountable amounts of exhaust pollution. Proper and controlled loading is therefore essential. It increases diesel engine life by up to four times and improves the efficiency by ensuring that the engine has sufficient loading at all times.

"Engine Wear and Tear
Letting an engine idle actually does more damage to the engine than starting and stopping. Running an engine at low speed (idling) causes twice the wear on internal parts compared to driving at regular speeds, which can increase maintenance costs and shorten the life of the engine

Feel free to research it yourself, it's all about oil pressure and compression pressures, boring stuff. Newer trucks don't need warm up time at all, same as all newer cars and 4WD's(many won't believe that), turbo cool down is done for short periods after high engine loads, totally different from start up idle.
I'm sure if you read your cars manual it will have a section saying that no warm up idling is required, in Australian conditions.
And as for charging, most alternators put out bugger all amps at idle, therefore, the engine would be runnning a long time to put in a decent amount of charge. And increasing the revs with no load just causes more damage.
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Follow Up By: Alloy c/t - Wednesday, Sep 21, 2005 at 13:56

Wednesday, Sep 21, 2005 at 13:56
Tuff60 ,I repeat as stated above ," then every truck driver is wrong" ,, as for charging from altenator I would suggest you have yours checked ,if its not producing the same VOLTS at idle as it does at higher revs you have a dud ,the AMPS are controlled by the regulator [integral or external ] and by how much the battery will accept ,,,,,exactly the same as the christie generator produces 55amps at 14+ volts ,if your battery is already fully charged it wont accept any more amps but it will accept the volts.
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Follow Up By: Tuff60 - Saturday, Sep 24, 2005 at 18:18

Saturday, Sep 24, 2005 at 18:18
"I would suggest you have yours checked ,if its not producing the same VOLTS at idle as it does at higher revs you have a dud"
You clearly know more than me, but please put a multi meter on your battery, load up the electrical system, ie high beams, A/C, fans and everything else and watch what it does when you bring up the revs.
Maybe you're right and it is a dud, oh well another one to send back to bosch.
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Reply By: Mike DiD - Sunday, Sep 25, 2005 at 09:10

Sunday, Sep 25, 2005 at 09:10
"And as for charging, most alternators put out bugger all amps at idle, therefore, the engine would be runnning a long time to put in a decent amount of charge."

I was surpised when I put an Ammeter across the Battery Earth lead with the Pajero DiD at idle - 37 Amps - and that was after only having had the headlights on for a few minutes before starting. This is more than the recommended charging current for an N70 size battery.
AnswerID: 131689

Reply By: Mainey (WA) - Tuesday, Sep 27, 2005 at 13:31

Tuesday, Sep 27, 2005 at 13:31
(QUOTE)i'm thinking of buying one of those small honda 55 amp alternator set ups for charging the caravan battery & second vehicle battery if needed.what do youse' reckon are they any good, regards toohey.(end quote)

...S O L A R... power

BUT

have seen GMC generaters here in Perth $55 for 750 Watt
or
4 stroke, 950 Watt, regulated 240v for $200

can't personally see the reason to spend 1K on a generator,
someone may have their own idea's and tell me the reason :-)
AnswerID: 131990

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