Question 1

when i  press the mode button nothing happens, iwas looking for winter mode , it doesnt come up, it just showws a car is it working correctly

Accepted Answer

With a 12v battery already connected, as soon as you the plug the charger into the mains, the charger first analysis the battery before then making it's own most appropriate charging program selection and the display changes to show battery voltage. You need to press the MODE button within those initial few seconds if you wish to over-ride the automatic selection and manually select one of the following three options:1) slow charge for small or motorbike battery at 0.8A/14.4volts - the motorbike symbol is displayed2) normal charge for car or leisure battery at 3.8A/14.4 volts - the car symbol is displayed3) winter mode for car or leisure battery at 3.8A/14.8 volts - the snowflake symbol is displayed.Once a program has been selected/started the MODE button becomes disabled, so you only have that initial period of time to manually change the program setting. Otherwise, disconnect the charger from the mains and reconnect it again after a few seconds to restart and change the selection. If you do not press the MODE button to manually make a selection, the charger automatically selects the most appropriate setting: If mains power should be interrupted, this feature ensures the charger restarts and reselects the right setting - useful for vehicles and boats in long-term storage where the mains can often be temporarily disconnected. There is no winter setting for 6v batteries.

Question 2

Can u use an extension lead with this item as the leads are not long enough to reach from plug

Accepted Answer

Hi, yes you can either use a mains extension lead or you can buy extension leads fir the 12v side of the unit, the red and black wires. There often one listed alongside the charger listing.
I use an ordinary mains extension lead which reaches just under my car, then I’ve got one of those waterproof boxes which you get for outdoor Christmas lights, and I put the mains plug AND the charger unit inside that to keep it all waterproof. The charger is great and does not get hot so is fine inside the box. I also use a mains rcd plug at the mains just to be sure.
Overall, if you’ve got a shed with power in it it’s probably best to plug the charger inside there and buy the red and black 12v extension, you can get quite long ones if you can’t get the car near the shed or garage.
Hope that helps

Question 3

This charger matches almost all the requirements but it does not mention whether it is suitable for a 650A. Also, could I extend the cable myself?

Accepted Answer

Hi
I have a Jaguar XF sport and recently fitted a 900amp battery. I have permanently wired the trickle charger cables in and extended the charging cable so I can trickle charge the battery without lifting the covers in the boot. The jag is quite power hungry when sat and not used for a while. This is a great cheap solution. I intend to do the same with my other car by buying a fused lead which are quite cheap.   Self solder joints for the cable. 
Don’t know if this helps 
Pat

Question 4

Is this suitable for a battery which requires "voltage limited charging" and has a stop / start system (Golf BlueMotion)?

Accepted Answer

I have an Audi A3 saloon 1.4 turbo petrol with stop/start,2014 reg . I've used it a couple of times  and it seems to detect the type of battery and charges it fine. As far as your car is concerned I wouldn't want to comment. Best ask VW or the battery manufacturer.

ASIN	B009A83P1E
Amperage	4 Amps
Best Sellers Rank	4,014 in Automotive ( See Top 100 in Automotive ) 42 in Car Battery Charging Units
Box Contents	1 x battery charger
Brand Name	Maypole
Colour	Red/Black
Compatible Devices	Motorcycles, cars, vans, caravans and motorhomes
Connector Types	Battery Clip & Ring Terminal
Country of Origin	United Kingdom
Current Rating	4 Amps
Customer Reviews	4.6 4.6 out of 5 stars (2,307)
EU Spare Part Availability Duration	10 Years
Global Trade Identification Number	05013008074237
Input Voltage	230 Volts (AC)
Item Dimensions D x W x H	25D x 15W x 5.5H centimetres
Item Highlight	Fully Automatic, 5 Stage Charging Cycle, Lead Acid, AGM
Item Type Name	MP7423 4A Dual Voltage Electronic Smart Charger
Item Weight	664 Grams
Manufacturer	Maypole
Manufacturer Part Number	MP7423
Model Number	MP7423
Number of Items	1
Number of Ports	1
Output Voltage	12 Volts
Product Warranty	12 months
Specification Met	UL, FCC, CE, RoHS
UPC	654975696821
Unit Count	1.0 count

Maypole 4A Dual Voltage 6/12V Electronic Smart Car Battery Charger

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