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Thread: switching to Lithium

  1. #1
    Join Date
    Apr 2019
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    switching to Lithium

    With gas being banned from our touring rig and given its in the shop getting the new rear fitout it seemed the right time to switch

    Have committed to the following.

    All Enerdrive gear
    200amp/hr B-Tech Battery
    40amp DC-DC
    2000w inverter with RCD and remote on/off
    Battery monitor
    Low capacity (%) cutout

    Re: battery, I initially didnít want to fit inside the cab due to limited real estate therefore settled on buying 2 AMPS 100amp/hr from a Traxide as they seemed good value for money. Good thing I double check the measurement as I discovered they were too long switching to Lithium. The guy doing the fit out is now utilizing some dead space for the 200.

    Re: DC-DC 40+, pretty straight forward. Recommend max charge current is 60amps. Iíll leave the DC-DC set at 40 and the roof solar to the battery via the existing Victron 75/15. Iíll have an Anderson plug coming off the DC-DC solar input for when I need to connect a solar blanket.

    Re: 2000w inverter. It the max. Size recommended. Iím going with the model with built in RCD. Will have a remote on/off switch and a power point (ext. Lead)in the kitchen.

    Re: battery monitor, although not required as I can view the battery from my phone, having a display in the kitchen will be handy. I always in trouble for being on my phone to much.

    Re: low capacity cut out, Iím calling it low capacity so not to get confused with the internal low voltage cut out on the battery. If for some reason you get to zero % the BMS is likely to go to sleep and charge from alternator or solar will not wake it up. As I wonít be carry a battery charger the cutout will be set at 15%. Iíve read that running a set of jumper leads from start battery to AUX will wake up the BMS, if that the case why doesnít the alternator do it.??

    Currently have 300w if solar on the roof and a 120 blanket.

    I may move away from semi flexible panels as even though this set is performing better than the cheap as chips first set Iím at off the rated output. Will wait for the car to be return and Iíll take measurements and see what options are out there to maximize the allocated roof space.

    Load on the system.
    - 60L evaKOOL fridge
    - 1800w induction cook top
    - a couple of LED lights
    - a couple of USB outlets
    - water pump.
    - 12v oven, nearly always used when driving. Maybe the last hour max. on just battery.

    The basic redarc battery isolator and 110amp/hr AGM are being retired.

    Even when we toured using gas we werenít big users. On a typical day we only boil water to wash dishes once a day, boil one cup of water in the morning, cook an evening meal.

    When available we take advantage of cooking/heating over a fire, camp kitchen or public BBQ.

    Oh and if weíre low on power, there is a perfectly good alternator keen to help out with a top up.

    Pretty comfortable itíll all just work.

    Howís that grab ya??

  2. #2
    Join Date
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    Collected the defer last night

    Get the battery to 100% so I can calibrate the remote monitor display

    have the inverter to wire in today....there had been a rush on Enerdrive gear and they had zero stock in AUS. Found a seller with a stash in WA

    Camping this weekend to test the setup.....

  3. #3
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    Apr 2019
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    40 from the DC-DC and 2.1 from solar.


  4. #4
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    Good move, you won't be sorry. Running the microwave off our Lithium setup as I type this. No more gas kettle either. Proper toaster too.
    Enjoy them,.
    + 2016 D4 TDV6

  5. #5
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    Quote Originally Posted by Milton477 View Post
    Good move, you won't be sorry. Running the microwave off our Lithium setup as I type this. No more gas kettle either. Proper toaster too.
    Enjoy them,.
    No microwave or toaster.

    Just one induction cooktop

  6. #6
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    Apr 2019
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    new set up has had a few runs...a few observations

    2 two night weekends and just finishing a seven night road trip.

    Cabling, when running a 2000w inverter pulling 160amps while boiling water it needs to the right size. Installer needed to do some rework, I followed the instructions so mine was good

    DC-DC, more than happy with performance, 40amps and whatever from the roof mounted solar. On driving days we were always back to 100% before lunch, even when running a 12v Oven. The 40 does taper off as it gets closer to 100%, seems to differ from day to day. Enerdrive suggested a change in one setting to have it charging at 40 for as long as possible.

    Battery, havenít been below 62% yet and seems to be enough capacity. We were parked up for three days relying only on solar and were at 92% the night before we left. Low voltage (capacity) cuts in at 18%. Ya donít get to use 100% of a lithium battery

    One thing we miss about our gas cooker (disposable cylinder type) is not being able to set up on a park table for a cook up as weíre confined to cooking at the car.

    Changed solar to 2 x 120w semi flex....big improvement on the previous two I had. Will switch to one big house type solar panel before we leave.

    Really happy with the switch....

  7. #7
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    Quote Originally Posted by W&KO View Post
    With gas being banned from our touring rig and ...
    Quote Originally Posted by W&KO View Post
    One thing we miss about our gas cooker (disposable cylinder type) is not being able to set up on a park table for a cook up as weíre confined to cooking at the car.
    Don't quite understand the reference to getting rid of gas. Is this an Australian thing for the fire risk? Am in NZ so some context would assist understanding no doubt. Sorry if I missed this somewhere.

    An interesting thread, cheers for the initial info and the feedback/followup.

  8. #8
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    Quote Originally Posted by windsock View Post
    Don't quite understand the reference to getting rid of gas. Is this an Australian thing for the fire risk? Am in NZ so some context would assist understanding no doubt. Sorry if I missed this somewhere.

    An interesting thread, cheers for the initial info and the feedback/followup.
    The dream is to take the defer abroad.....and wanted to remove chasing a second fuel source.

    We only have a 110 and room is already at a premium

    Last 2-3 years weíve been using the disposable gas cylinders. Whilst not a tree hugger I do try and limit waste where I can plus they donít work super good in altitude or cold weather and the wind.

    Weíre now planning a two lap of AUS and decide if we will ship O/S.

    Didnít want to revert to standard gas cylinders as you generally need two, one in use and one waiting to be filled. Well this is what we did with outlet camper trailer.

    So far lithium is working well for us and seems weíve made the right call......I doubt weíll get anywhere near our money back in saving from not buying gas......

    To answer your question, not an Aussie thing, not a fire thing, just want to reduce waste and not have to worry about buying gas.

  9. #9
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    Quote Originally Posted by W&KO View Post

    Changed solar to 2 x 120w semi flex....big improvement on the previous two I had. Will switch to one big house type solar panel before we leave.

    ....
    It seems Rule of thumb seems to be you need 2 x usable battery capacity in solar watts.....well thatís what I read on the internet.

    Sooo, I have 164 usable amp hours (I still need to understand the built in battery protection) therefore should be aiming for 330w of solar if you use the rule of thumb

    The best I got out of the semi flex panels on our recent nine day trip was 181w 75-76%

    It been heavily overcast of late and I spotted on a sunny day a few days ago that the solar output peaked at 201w 83% which i thought was pretty good from my reasonably good quality semi flex panels.

    Considering something like this for our trip of these semi flex panel donít perform, but at 19kg....
    https://www.springers.com.au/web/con...&download=true

  10. #10
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    Have the system a good workout over the weekend.

    Battery dropped to 68% which is the lowest to date.

    I wasnít convinced the new semi flex solar panels were going to get the tick of approval......

    Happy ish with 228w from 240w of panels.


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