 | Home > Maintenance & Modifications > 2nd aux battery |
 
|
|
|
| Mash Member Since: 09 Feb 2015 Location: Guernsey Posts: 1674   
|
You could always add a second alternator to your engine, the wolf fleet run one alt for the vehicle and a second one for the 4 radio batts. 90 wolf - Jasmin http://www.defender2.net/forum/topic39408.html
90 V8 - Maggie http://www.defender2.net/forum/topic42564.html 110 TD5 - Buggsy http://www.defender2.net/forum/topic59029.html 52HG25 lightweight https://www.defender2.net/forum/topic72342.html D3 Hse - Fiona Capri 2l S - Anna Think I might have a problem............ |
||
9th Sep 2016 7:13am |
|
| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324 
|
Does the 300tdi Defender run the 100amp alternator as standard? I know that Discoverys did and they would happily cope with a couple of extra big batteries, as I had two in the Desert Wolf trailer that I towed with mine. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
||
|
9th Sep 2016 8:02am |
|
| 4ndy Member Since: 04 Jun 2016 Location: Cheshire Posts: 17 |
I've enjoyed living "off grid" for a few years before meeting my better half, relying on 12v batteries and an inverter, so perhaps I could offer some insight?
The question really is how much energy you're going to remove from your batteries between charges, how quickly you want to recharge them and how quickly they can receive that charge. A 50 amp alternator will look after dozens of batteries, if you're only using an LED torch and recharging them daily. Likewise, a 100 amp alternator will bulk charge two smaller batteries very quickly, but the final charging will take just as long as with a smaller alternator but this is a common setup for weekend camping. Is a solar panel a possibility with your setup? Especially in the long summer days, a 90w panel with controller can easily keep up with an efficient 12v fridge and mobile phone charging (and is relatively cheap nowadays). You can mix different rated batteries, but it's not "best practice" and you can only consider the lower capacity battery in your capacity calculations if you want to keep the bank healthy. If you know the current draw of your devices and how long between charges you want to run them then I could assist further. Not an owner... yet! |
||
|
9th Sep 2016 9:49am |
|
| simons17 Member Since: 21 Dec 2013 Location: Beverley Posts: 29
|
I have various appliances running off my car Ie fridge inverter lights etc . I am going to add a solar panel at some point . It is a 100 amp altenator fitted .
Thanks for the advice I wasn't sure if it would overload the altenator . Simon |
||
|
9th Sep 2016 4:26pm |
|
| 4ndy Member Since: 04 Jun 2016 Location: Cheshire Posts: 17 |
Hi Simon,
The alternator will happily provide its maximum output as long as it is adequately cooled. Often when an alternator "burns out" it is because the engine has been left idling for long periods of time to charge the batteries. At idle the alternator will give out a large amount of its output but wont be spinning quickly enough to cool itself. On boats it's normal to run the engine above idle for charging, but it's becoming more common to have a large solar bank and a small gennie for winter to reduce main engine wear. My aim is to have 2x110 batteries, linked to the alternator for on the move charging, followed up by solar panels and a small 5 stage charger to maintain the batteries (on a trailer so will be in the garage for weeks on end). Not an owner... yet! |
||
|
9th Sep 2016 4:54pm |
|
| simons17 Member Since: 21 Dec 2013 Location: Beverley Posts: 29
|
Thanks for the advice . It been a big help
Sounds like we will be running similar set ups Simon |
||
|
10th Sep 2016 6:59am |
|
| simons17 Member Since: 21 Dec 2013 Location: Beverley Posts: 29
|
Picked up a solar panel at the weekend , it works a treat just got to wire in a bit more suitable
|
||
|
29th Sep 2016 8:22pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
