Quote:

if the ctek pushes more than 13.8v, then the battery management system should control the charging of both batteries - because the VSR will join them

So the nat luna battery monitor joins the batteries as the main one has full voltage (more than 13.somethingV)

If i remember correctly you can set the trigger voltage on this system but then you have to open it up, void your warrantee and find the right resistor. Too long ago to remember how it looked inside.

Its a typical problem with this unit (set for classic batteries) and the higher voltage of AGM batteries, i had the same issue with my discovery and dual optima's before.

Can leave you with 2 half batteries after connecting the c-tek. Well, should be sorted after about 60 hours of charging as then both will be full again.

Would recommend you to put a manual switch between the batteries so you can isolate them when charging.

2cents

bolampau wrote:

My hangover has subsided so I went to check out the National Luna dual monitor and it showed the main battery as only 12v.

Took off the seat and plugged the Ctek croc clips onto the main battery and switched charger to AGM cycle.
N.B. the ignition is off.

Now the monitor is showing that both batteries are charging, which I did not expect? I thought it would only charge the main battery.......how come it can do both?

Sorry if my question sounds dumb but I'm clueless about electrickery.

Thanks in advance,
Paul

tatra805 wrote:

As BPMan wrote

Quote:

if the ctek pushes more than 13.8v, then the battery management system should control the charging of both batteries - because the VSR will join them

So the nat luna battery monitor joins the batteries as the main one has full voltage (more than 13.somethingV)

If i remember correctly you can set the trigger voltage on this system but then you have to open it up, void your warrantee and find the right resistor. Too long ago to remember how it looked inside.

Its a typical problem with this unit (set for classic batteries) and the higher voltage of AGM batteries, i had the same issue with my discovery and dual optima's before.

Can leave you with 2 half batteries after connecting the c-tek. Well, should be sorted after about 60 hours of charging as then both will be full again.

Would recommend you to put a manual switch between the batteries so you can isolate them when charging.

2cents

bolampau wrote:

tatra805 wrote:

As BPMan wrote

Quote:

if the ctek pushes more than 13.8v, then the battery management system should control the charging of both batteries - because the VSR will join them

So the nat luna battery monitor joins the batteries as the main one has full voltage (more than 13.somethingV)

If i remember correctly you can set the trigger voltage on this system but then you have to open it up, void your warrantee and find the right resistor. Too long ago to remember how it looked inside.

Its a typical problem with this unit (set for classic batteries) and the higher voltage of AGM batteries, i had the same issue with my discovery and dual optima's before.

Can leave you with 2 half batteries after connecting the c-tek. Well, should be sorted after about 60 hours of charging as then both will be full again.

Would recommend you to put a manual switch between the batteries so you can isolate them when charging.

2cents

Thanks BPMan,
the charger has now finished, it took 7 hours roughly. After disconnecting the Ctek, the dual monitor shows both batteries as above the normal mark now - it's too dark to read the exact voltage.

The car started up straight away and all seems well.

I think I'm gonna fit the Ctek standard lead to the main battery and trail the connector outside the seat box. Then I won't have to lift the seat base to do a recharge in future!
Cheers,
Paul

bpman wrote:

my 110 has not been started since before december, but I bet it will be fine tomorrow morning (with a single battery) it's been on the ctek since last saturday

SHOCK!!!! HORROR!!!! "Hold the front page!" Steve you're not!! You can't!! What will the neighbours say?

The 110s not being dug out surely? Don't believe it, refuse to look and see if there's an answer! Someone else is bound to start a new thread if you do!

 If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

K9F wrote:

bpman wrote:

my 110 has not been started since before december, but I bet it will be fine tomorrow morning (with a single battery) it's been on the ctek since last saturday

SHOCK!!!! HORROR!!!! "Hold the front page!" Steve you're not!! You can't!! What will the neighbours say?

The 110s not being dug out surely? Don't believe it, refuse to look and see if there's an answer! Someone else is bound to start a new thread if you do!

bpman wrote:

are you taking the p!55 Mal ?

Maybe an incy wincy bit I am! I've only seen it twice, thought you may have been hiring it on an hourly basis! Whip it out, wave it about and show it off! Defender Ice too!!!  If you go through life with your head in the sand....all people will see is an ar5e!!

Treat every day as if it is your last....one day you will be right!!

leeds wrote:

Well BP Ice has experienced some light Yorkshire snow today. Ice looks cool


Brendan

He didn't get lost then  Russell
2011MY 110 XS USW Black

BigRuss wrote:

He didn't get lost then

leeds wrote:

BigRuss wrote:

He didn't get lost then

Well let's just say he made it ok, although it was an interesting route he took. He did manage to explore one of our local green lanes on his way, so not exactly the fastest route. He did mention something about his sat nav.

Brendan

WHAT! He popped the ICE's cherry ? I don't believe you. Russell
2011MY 110 XS USW Black

BigRuss wrote:

leeds wrote:

BigRuss wrote:

He didn't get lost then

Well let's just say he made it ok, although it was an interesting route he took. He did manage to explore one of our local green lanes on his way, so not exactly the fastest route. He did mention something about his sat nav.

Brendan

WHAT! He popped the ICE's cherry ? I don't believe you.

i've been off roading in the ice in france