1 hour ago, mrmetallica said:

just read the description it says its a calcium battery ?

A calcium battery is a type of lead-acid battery. Calcium, Silver-calcium, AGM, SLA, VRLA, EFB, these are all slightly different variants of the basic lead-acid battery. They all have a full charging voltage of 14v to about 14.8v, and will all suffer from sulphation problems if discharged much below 12v for any length of time.

Lion Batteries are a relatively low cost brand of battery. Do not confuse Lion with Li-Ion batteries! Li-Ion or lithium is a completely different thing that is 100% incompatible with lead acid. (Li-Ions are used in phones, laptops, etc, that have the correct protection circuits built in.)

Ford cars without  auto stop-start are specified to use silver-calcium, though some manufacturers like Yuasa warrant that their calcium batteries are fine on Ford smart charge systems.

Most Ford cars with stop-start are specified to use EFB batteries. A more expensive variant of the lead-acid type.

A calcium battery is a special type of lead acid battery. A smart charger will not be able to start the charge if the battery is down to 7 volts but you might be able to get the voltage up with a non-smart charger and then finish the charge properly with your smart charger (a calcium battery requires a slightly higher charge voltage than a normal lead acid battery). At 7 volts I suspect that the battery is dead and you will need a new one. Is the battery still under warranty?

There is a great site with all info's on the car batteries (and others) here: http://www.batteryfaq.org

I would say that voltage regulated charger, or as you call it non-smart is going to blow it's fuse as soon as it is connected to the 7V battery, voltage difference is too large and it's going to drive a large current. Charging batteries with large currents is going to damage them or cause all sorts of strange noises and visual effects. So don't do this at home.

This battery is a write-off (read the warranty card, manufacturer or distributor has enough test equipment), just get another one and add this to experience (like never forget to unplug the dashcam....or so). Battery brand does not matter if it's maintained properly (i.e. at least annually put it on the external charger, top up the demi water etc....), even anon brand may last up to 5-6 years.

8 hours ago, pcaouolte said:

A calcium battery is a special type of lead acid battery. A smart charger will not be able to start the charge if the battery is down to 7 volts but you might be able to get the voltage up with a non-smart charger and then finish the charge properly with your smart charger (a calcium battery requires a slightly higher charge voltage than a normal lead acid battery). At 7 volts I suspect that the battery is dead and you will need a new one. Is the battery still under warranty?

got the car going yesterday with my daughtrs help ive rewired the camera so comes on with ignition, i thought that what park mode was about .

car started ok this morning so will see how it goes over the next few days got another charger just in case

Godd news...did you get new battery or.....?

For TDCI-Peter: Fords without Start-Stop system use the battery with Silver-Calcium spec due to the battery position under the hood. Namely, battery suffer from high under-the-hood temperatures, this increased temperature is causing the accelerated grid corrosion. Silver-Calcium is heat resistant more than Calcium-Calcium battery. Both are good for the Ford smart-charge system, since both require higher charging voltage. Yuasa did release to the market silver-calcium batteries, model YBX-5xxxx.

EFB is just a Silver-Ca or Ca-Ca battery with more electrolyte than the ordinary one.

On my car original battery was made by Banner, also sold as Duracell Advanced. 

 

On 12/30/2019 at 7:22 PM, Ned_Mk2_1.8tdci said:

Godd news...did you get new battery or.....?

For TDCI-Peter: Fords without Start-Stop system use the battery with Silver-Calcium spec due to the battery position under the hood. Namely, battery suffer from high under-the-hood temperatures, this increased temperature is causing the accelerated grid corrosion. Silver-Calcium is heat resistant more than Calcium-Calcium battery. Both are good for the Ford smart-charge system, since both require higher charging voltage. Yuasa did release to the market silver-calcium batteries, model YBX-5xxxx.

EFB is just a Silver-Ca or Ca-Ca battery with more electrolyte than the ordinary one.

On my car original battery was made by Banner, also sold as Duracell Advanced. 

 

i didnt buy a new one no. the one in the car i bought in august so will see what happens