Trickle Charger settings

joeyg4282 · 02-14-2009, 05:14 PM

Hi, I want to connect a trickle charger to the battery of my 135i. The trickle charger has a setting for battery type and gives me 2 choices:

1. Conventional & Low Maintenance

2. Maintenance Free & Deep Cycle

What type of battery does the 135i have?

Thanks

Joe

ZIPNBYE · 02-14-2009, 05:52 PM

Deep cycle it is not.

Take your battery's Amp rating and compare it to your trickle charger's Amp/Hr rating...divide the former by the latter and you've got the number of hours to leave the charger on the battery.

joeyg4282 · 02-15-2009, 08:13 AM

Quote:

Originally Posted by ZIPNBYE

Deep cycle it is not.

Take your battery's Amp rating and compare it to your trickle charger's Amp/Hr rating...divide the former by the latter and you've got the number of hours to leave the charger on the battery.

I already know that part thanks. The problem I am having is that there is a separate switch on the battery charger that you must flip to one of two settings, either conventional/low maintenance or maintenance free/deep cycle. I don't want to screw up the battery by not having this set correctly.

This is the charger that I bought....got it for $49.99 on sale at Canadian Tire.

http://www.canadiantire.ca/browse/pr...08474396672454

Joe

Lester · 02-15-2009, 09:33 AM

Here is what the manual says - I would choose maintenance free at 2 amps.

joeyg4282 · 02-15-2009, 09:38 AM

Quote:

Originally Posted by Lester

On a $50 charger it probably doesn't matter. Just set it on the 2 amp setting and leave it for a few hours. Why are you wanting to trickle charge? Are you not driving your car over the winter? Are you going to disconnect your battery before charging?

It's a $120 charger that was on sale. We aren't driving the 135 this winter so was advised to throw it on a trickle charger for a few hours every week to keep the battery fresh.

I saw advice given on this forum not to disconnect the battery when trickle charging it due to all the electronics in the car that might be affected by disconnecting it.

Joe

Lester · 02-15-2009, 09:39 AM

Quote:

Originally Posted by joeyg4282

It's a $120 charger that was on sale. We aren't driving the 135 this winter so was advised to throw it on a trickle charger for a few hours every week to keep the battery fresh.

I saw advice given on this forum not to disconnect the battery when trickle charging it due to all the electronics in the car that might be affected by disconnecting it.

Joe

I just updated my post based on the manual.

joeyg4282 · 02-15-2009, 10:02 AM

Thanks Lester.

ZIPNBYE · 02-15-2009, 10:10 PM

If you're not driving the car, ie: it's in storage, I'd remove the battery and keep it indoors. The car will be fine without the battery, and your battery will last a lot longer without the load.

As to your original posting's question, and my subsequent answer...as I wrote, it's NOT a deep cycle battery (guess you missed that). Typically only marine batteries are, and battery chargers are a generic item, to be used by all, hence the switch setting.

joeyg4282 · 02-16-2009, 05:38 PM

OK thanks Richard.

Joe

02-14-2009, 05:14 PM	#1
joeyg4282 Private First Class 25 Rep 139 Posts Drives: 2014 BMW 435i XDrive Sapphire Join Date: May 2008 Location: Ancaster Ontario iTrader: (0)	Trickle Charger settings Hi, I want to connect a trickle charger to the battery of my 135i. The trickle charger has a setting for battery type and gives me 2 choices: 1. Conventional & Low Maintenance 2. Maintenance Free & Deep Cycle What type of battery does the 135i have? Thanks Joe
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02-14-2009, 05:52 PM	#2
ZIPNBYE Let's save military ranks for those who earn it! 45 Rep 1,161 Posts Drives: ...on the Ragged Edge Join Date: Dec 2008 Location: Edmonton, AB, Canada iTrader: (6) Garage List 2013 BMW e92 M3 Cou ... [7.50] 2013 BMW e84 X1 xDr ... [7.00]	Deep cycle it is not. Take your battery's Amp rating and compare it to your trickle charger's Amp/Hr rating...divide the former by the latter and you've got the number of hours to leave the charger on the battery. __________________ Richard 2013 BMW M3 Individual -- Fire Orange (sold) 2013 BMW X1 xDrive35i M-Sport -- Valencia Orange (sold) 2011 BMW 1-series M Coupe (#205/220) -- Valencia Orange (sold) 2009 BMW 135i M-Sport Coupe -- Space Grey (sold)
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02-15-2009, 09:33 AM	#4
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	Here is what the manual says - I would choose maintenance free at 2 amps. Attached Images
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02-15-2009, 10:02 AM	#7
joeyg4282 Private First Class 25 Rep 139 Posts Drives: 2014 BMW 435i XDrive Sapphire Join Date: May 2008 Location: Ancaster Ontario iTrader: (0)	Thanks Lester.
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02-15-2009, 10:10 PM	#8
ZIPNBYE Let's save military ranks for those who earn it! 45 Rep 1,161 Posts Drives: ...on the Ragged Edge Join Date: Dec 2008 Location: Edmonton, AB, Canada iTrader: (6) Garage List 2013 BMW e92 M3 Cou ... [7.50] 2013 BMW e84 X1 xDr ... [7.00]	If you're not driving the car, ie: it's in storage, I'd remove the battery and keep it indoors. The car will be fine without the battery, and your battery will last a lot longer without the load. As to your original posting's question, and my subsequent answer...as I wrote, it's NOT a deep cycle battery (guess you missed that). Typically only marine batteries are, and battery chargers are a generic item, to be used by all, hence the switch setting. __________________ Richard 2013 BMW M3 Individual -- Fire Orange (sold) 2013 BMW X1 xDrive35i M-Sport -- Valencia Orange (sold) 2011 BMW 1-series M Coupe (#205/220) -- Valencia Orange (sold) 2009 BMW 135i M-Sport Coupe -- Space Grey (sold)
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02-16-2009, 05:38 PM	#9
joeyg4282 Private First Class 25 Rep 139 Posts Drives: 2014 BMW 435i XDrive Sapphire Join Date: May 2008 Location: Ancaster Ontario iTrader: (0)	OK thanks Richard. Joe
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