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Battery drain 1970 1302

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barls Administrator Causer of Chaos and Mayhem

9,473 posts · joined Jun 2004 ·

#656548
ok for starters they didnt start making the 1302 till late 71 and most of them were 72 sbugs. so if its a 70 its most likely a 1500
it would eventually drain it but it would take a fair while
“We all pay for life with death, so everything in between should be free.” Bill Hicks
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Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#656557
those voltages are fine for a genny equiped car

that draw is fairly normal for the memory/clock in digital radios and wont flatten the battery in a couple of weeks
but if ur bug was gonna sit for anymore than 3-4 weeks i'd d/c the battery or fit urself a battery isolation switch

supers started in 70 in most parts of the world
it was early 71 here
my first super was a 2/71 was bought new on april fools day 71 and i had a parts bug that was a 1/71 super

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#656564
barls wrote:ok for starters they didnt start making the 1302 till late 71 and most of them were 72 sbugs. so if its a 70 its most likely a 1500
it would eventually drain it but it would take a fair while
🤓 Sorry for upsetting a purist. It has 1970 on the rego label and 1971 on the Compliance. Why? I have NFI and honestly don't care. It is all my fault for even saying 1970, shoot me. 🤪

It is a 1302 1600 TP (fact) so that is for dessert. 😂
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

57oval Officially Full-On Dubber

305 posts · joined Oct 2006 ·

#656567
helbus wrote:One for the more electrical minded.

I have located that I get a 0.3A drain on the battery from the radio when it is turned off. Is this enough to flatten a battery after a few weeks?

The battery reads 12.8V when charged, and the battery terminals when generator running shows 13.6V
Yes , it should be 0.05 or 50mA otherwise your battery will go flat in 2 weeks. Disconnect the negative from battery & connect your meter in line to measure current draw, then remove your fuses one at a time to see which circuit is draning your battery.

68AutoBug Beetle Restorer - Experience over 138\% - YIKES --

11,654 posts · joined Aug 2002 ·

#656568
1302S supers were made from 1st August 1970
which makes it a VW 1971 Model

No VW 1970 model 1302s Supers were made..

many books are now listing Beetle year of manufacture as the VW model year...
which is incorrect...

so if you have a 1302S made in August 1970
its a 1971 model beetle...
so far as VW are concerned... [ and many of Us]

engine numbers started with AF or AD

[then again if its made in 1970 thats the Year or date of manufacture...] [to normal people]

Lee
- Helping keep Air Cooled VWs on the road - location: SCONE in the Upper Hunter Valley - Northern NSW 320 kms NNW of SYDNEY---

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#656632
It is the circuit with CD player only fitted. The process you describe is exactly how I found the actual line causing it. The actual reading was 0.29A.
57oval wrote:Yes , it should be 0.05 or 50mA otherwise your battery will go flat in 2 weeks. Disconnect the negative from battery & connect your meter in line to measure current draw, then remove your fuses one at a time to see which circuit is draning your battery.
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#656633
It all gets interesting sometimes eh Lee?

AD0990** engine number - sighted
11122947** chassis number - sighted
Rego label also has these details, and "1970 VOLKS SEDAN" as description
68AutoBug wrote:1302S supers were made from 1st August 1970
which makes it a VW 1971 Model

No VW 1970 model 1302s Supers were made..

many books are now listing Beetle year of manufacture as the VW model year...
which is incorrect...

so if you have a 1302S made in August 1970
its a 1971 model beetle...
so far as VW are concerned... [ and many of Us]

engine numbers started with AF or AD

[then again if its made in 1970 thats the Year or date of manufacture...] [to normal people]

Lee
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#656640
have u got both the BATT and ACC wires to the radio running off that fuse? so ur radio can be used without the ignition on??

if so thats were problem is
the joys of vws with no accessories position
nearly all headunits these days dont shut down completly till the ACC circuit is killed
all my JVC and kenwood headunits have had a standby mode like a TV they go into when u turn them off but the car is still running
this maybe were the draw is coming from

that would be about a march or april 71 build bug with the original engine too, somthing thats unusual these days
if the compliance plate is still on the front apron it will have the build date on it

helbus Administrator Mad fabricator, paint and body

7,386 posts · joined Sep 2002 ·

#656685
Radio goes off with ignition. I will look into what the unit's spec's are. It is a Sony Xplod.

The Bug is pretty original as far as I can see. Never restored, original interior, most paintwork original other than fender scrapes etc. I know what to look for there, so that is why I bought it. I assumed the mechanicals were pretty original. The guy I bought it off said it was an old lady one owner, but that is all hearsay, like about 99% of what people like to repeat.

Compliance plate is 3/71
EJ22 into Bay Microbus - Finished project build thread- click on this spot here for info

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#656780
yea i figured it was either march or april 71
my first bug had original engine too and its chassis and engine number were very close to urs
it was feb 71

i wouldnt have thought that was an excess draw for a headunits memory but wait and see
if ur batterys flat after a few weeks u know who the culprit is

Adsman Officially Full-On Dubber

393 posts · joined Jan 2007 ·

#656856
helbus wrote:One for the more electrical minded.

I have located that I get a 0.3A drain on the battery from the radio when it is turned off. Is this enough to flatten a battery after a few weeks?

The battery reads 12.8V when charged, and the battery terminals when generator running shows 13.6V

0.3A x 24hours a day = 7.2Amps

7.2A x 7 days a week = 50.4Amps

50.4A x 3 weeks = 151.2 Amps

What size battery do you have? If its still the original duty and size then yes it will be the cause.
What my garage isn't messy........Well chaos is a form of order isn't it?

matberry Moderator Go hard or go home

8,114 posts · joined Mar 2006 ·

#656868
Adsman wrote:0.3A x 24hours a day = 7.2Amps

7.2A x 7 days a week = 50.4Amps

50.4A x 3 weeks = 151.2 Amps

What size battery do you have? If its still the original duty and size then yes it will be the cause.
This man knows his stuff. Well done.
Matt Berry Motorsports...air cooled advice, repairs and mods Ph 0408 704 662
OFF-ROAD,CIRCUIT,DRAG,STREET,ENDURANCE