BMW Battery Charger - New one - An FYI

[hunds02]

Originally Posted by Clockwork

I cant remember all specs of that tender but does it have a consrant power mode, like the 7002 model does?
Even if not, after batts are charged overnight and you leave tender connected during programming you should be fine while tender is set to full charging mode

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It does not have a constant power supply mode. I think the safer option is letting charge all night then quickly code it with the charger disconnected to avoid any voltage spikes.

Originally Posted by Ricky Bobby

^This is key when coding, or upgrading the DME, as if it drops to "maintain" mode the voltage could drop below the ideal voltage and interrupt coding/programming

Honestly a basic manual battery charger at 10 amps should work just fine for coding and DME updates. I'm picking up one from Amazon for under $50 (Schumacher brand)

This model only outputs 4.3 amps on some modes and even less during analysis and maintain mode.

Originally Posted by kvc

The CTEK charger is more like a trickle charger, as opposed to the old school 10 or 15 amp types that give a big supply as soon as they're connected. I've had the CTEK for a couple of years now and they're great for keeping batteries like new, especially in vehicles that sit dormant for long periods (what I use it for). Not sure how this would impact on coding, but I imagine it would keep battery reasonably charged unless there is a huge drain happening, then it may struggle to keep up.

Yes, you are correct. See above. Many have mentioned of not using a battery charger period when doing simple coding with NCS, which is not time consuming. So I think as long as its fully charged prior to coding, then I should be OK to code without it plugged in.