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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5743   
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I got mine from (or will do when it arrives) from Halfords with a trade card. 1999 Defender TD5 110
Regards John M0VAZ Econet Station 48 no clock |
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16th Jun 2020 8:29am |
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| NinetyTD4 Member Since: 22 Apr 2011 Location: North Posts: 397  
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I just bought a second 5, because it is sufficient. Sorry, I am a old farm boy and keen on spending money only were it makes sense. We don't want to fully charge the battery of our multi-purpose vehicles, aren't we? Just asking 'cause the bullsh*t with e-crap gets onto my nerves. Temperature sensors, Peukert corrections and all that stuff is not important for the initial phase, imho.
Sorry again, I am from the Dinosaur age when we still used calculus and physics knowledge, not Google. Virtually almost we want to crank the engine with the electricity to let it start, only. Looking at the wires and taking into account we need some current for electronic gimmicks at the modern engines I assume 10 seconds on 200 amperes will do the job. After startup the rest is done by the generator anyways. 10 seconds 200 amps is the same as 400 seconds the 5 amps from the CTEK 5. Let me say we did a miscalculation and the battery only holds half the electricity we offer, coming to 800 seconds or 13 and a third minutes. Frankly, does it really matter whether it takes 7 minutes with a 10 amps or 14 minutes on 5 amps? I don't care. Which leaves trickle charging, but for that you don't need the higher current anyways and at the farm we do that by solar panel or wind generator, not by power outlet. So, long story, short result - almost any time the smallest 5 will do. Never forget: cars have owner, Landrover have field service personnel. |
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16th Jun 2020 9:41am |
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| macfrank Member Since: 05 Nov 2015 Location: somewhere in the north Posts: 993  
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I guess, as always it depends on your needs. I have a CTEK 10 permanently installed in our camper-converted Defender. There are two batteries, to power a fridge, heater, radio, lights for 2-3 days - and then still being able to start the engine. Sometimes we plug it in at campsites, in particular when its cold. It is also plugged in off-season / winter, when it sadly sits in the barn for weeks. The "e-crap" of temperature compensation, battery-health checking and trickle charging gives me the peace of mind that I can leave it alone without finding the barn burnt down when I return. And that the batteries will last longer.
I agree, that many many e-gimmicks out there are just a waste of everyone's resources (nerves included). However, it is possible to build easy-to use and lasting electronics. I mean, just look at the Voyager probes They were launched when Series III was the current model. And they're still working and sending data to earth!  |
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16th Jun 2020 3:51pm |
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| kmac Member Since: 07 Oct 2009 Location: Middlesex Posts: 1294 
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Using my MXS 5.0 to charge the AUX battery in a dual battery system - then read in this thread that it could destroy the charger.
What are people using for dual battery systems? Truck doesn't get much use due to lockdown etc. |
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17th Jun 2020 6:22am |
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5743
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CTEK 10 has landed.
Hooked it up to an older Defender battery I had in the shed and hit recond mode and left going for a few hours. Decided not to leave it on over night, so its back on today. 1999 Defender TD5 110 Regards John M0VAZ Econet Station 48 no clock |
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18th Jun 2020 8:08am |
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