Forum-Gallery-Shop-Sponsors

« Advertise on Freel2.com

Home > Off Topic > Lithium and Lead Acid Battery Comparison
Post Reply  Down to end
Page 1 of 1
Print this entire topic · 
IanMetro



Member Since: 11 Sep 2017
Location: Somerset BS21
Posts: 2747

United Kingdom 2014 Freelander 2 SD4 Metropolis LE Auto Fuji White
Lithium and Lead Acid Battery Comparison

I found this easily read article comparing battery types whilst investigating if (and how) I could swap Lead Acid for Lithium Batteries in an old style Mobility Scooter.

It contains some interesting facts on the differences.

https://static1.squarespace.com/static/55d...um+ion.pdf

PS I found that it would cost 4 times as much (£400 v £100) to upgrade batteries plus I would need a new 24v (Lithium) Charger. It would more than halve the Battery Pack weight and more than double the expected projected battery life (5 year warranty) FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 74k+ miles) (MY2015)

Post #422500 19th Jun 2022 10:39 am
View user's profile Send private message View poster's gallery Reply with quote
Boxbrownie



Member Since: 17 Mar 2019
Location: Looe
Posts: 2053

United Kingdom 2007 Freelander 2 i6 HSE Auto Stornoway Grey

I recently looked at replacing the gel batteries in our mobility scooter but the cost in total was horrendous, I might just upgrade the standard batteries in ours to the larger capacity gel batteries instead, mind you that’s not cheap as it needs a new housing as well.

Might get my slightly less than sylph like figure up the hills easier Rolling with laughter Regards

David

Lovely i6 has now gone, but not me......

Please let me know if anything in my post offends you, as I may wish to offend you again......

Post #422511 19th Jun 2022 5:00 pm
View user's profile Send private message View poster's gallery Reply with quote
Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4704

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

If your lead battery currently does the job then stick with it. If you go with lithium apart from all the battery which have too little mass for their stated AH. Lithium batteries need good quality BMS. You also need a lithium charger which actually stops charging when full. Absolutely no trickle charging or charging if below 5°C. If you are not using your lithium battery for awhile, discharge about 50% for longer life.


Victron battery.


No name Chinese battery filled with foam, often using C grade cells.


If you need to use the full capacity of a lead battery, use it. If you do this once a month over 5 years it's only 60 cycles, the battery is not going to drop off a cliff. Charge it up as soon as possible. Lead batteries like to be topped up regularly for storage. Just leave in on a smart charger. You could just connect a 5 watts solar panel with diode as a trickle charger.

I have four 26AH gel batteries for accessories. Also having four allows for jump starting at 360amps for 5 minutes or 1040 amps briefly. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #422524 20th Jun 2022 12:24 am
View user's profile Send private message View poster's gallery Reply with quote
Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4704

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

Boxbrownie wrote:
I might just upgrade the standard batteries in ours to the larger capacity gel batteries instead, mind you that’s not cheap as it needs a new housing as well.

Just get a second battery sit in in the basket & plug it in when needed with a jumper lead. If you want to use the old battery unplug it after use as its resting voltage will be different to the new one.

 Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #422525 20th Jun 2022 1:17 am
View user's profile Send private message View poster's gallery Reply with quote
Boxbrownie



Member Since: 17 Mar 2019
Location: Looe
Posts: 2053

United Kingdom 2007 Freelander 2 i6 HSE Auto Stornoway Grey

It’s not the longevity of the present batteries which is the issue, it is the fact they just don’t have the amperage in reserve for the occasional hill climb, it won’t help much as it’s the same motor obviously but a larger battery would help a bit before the fuse goes pop each time it wants me to get off and push Rolling with laughter

I don’t fancy putting/leaving an expensive battery in the carrying basket (not that we have one), easiest for us will be the larger pack which is designed for the buggy. Regards

David

Lovely i6 has now gone, but not me......

Please let me know if anything in my post offends you, as I may wish to offend you again......

Post #422531 20th Jun 2022 9:50 am
View user's profile Send private message View poster's gallery Reply with quote
Andy131



Member Since: 09 Dec 2009
Location: Manchester
Posts: 2159

United Kingdom 

Possibly a stupid question but does the battery form part of the ballast?
As in does it stop the vehicle from tipping over? In which case lighter lithium might be a bad idea. Tangiers Orange - gone, missing her
Replaced by Ewok what a mistake - now a happy Disco Sport owner

Post #422532 20th Jun 2022 10:13 am
View user's profile Send private message View poster's gallery Reply with quote
IanMetro



Member Since: 11 Sep 2017
Location: Somerset BS21
Posts: 2747

United Kingdom 2014 Freelander 2 SD4 Metropolis LE Auto Fuji White

It was the weight of the battery, lifting it in and out of the car, that I was trying to overcome.

I already have a lighter weight lithium battery foldable scooter, which is reasonably easy to load/unload, but my wife has an older style lead acid scooter, which is more sturdy, and dismantles into 5 (quite heavy) bits to put into car.

You are correct to point out that the quality of the batteries will most likely vary, as ever since I have been in the electronics industry all components have been tested, and categorised, and sold on at various prices which reflect their accuracy and probable durability.

That means you normally get what you were willing to pay for.

Andy, not a stupid question, you are right, my wife's scooter is much more stable than mine. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 74k+ miles) (MY2015)

Post #422533 20th Jun 2022 10:13 am
View user's profile Send private message View poster's gallery Reply with quote
Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4704

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

I don't know what size batteries scooters have, but a 26AH gel battery is only 8.5kg. Make a simple bracket to tie it down.

If you draw down lead batteries at a high rate their AH is actually less. So if you add another battery you will in effect have a bit more than double the AH because the batteries are drawn down at half the rate.

26AH battery:
20 hour rate (1.3 amps) 26AH
10 hour rate (2.11 amps) 21.1AH
5 hour rate (3.74 amps) 18.7AH
1 hour rate (14 amps) 14AH Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #422536 20th Jun 2022 10:44 am
View user's profile Send private message View poster's gallery Reply with quote
IanMetro



Member Since: 11 Sep 2017
Location: Somerset BS21
Posts: 2747

United Kingdom 2014 Freelander 2 SD4 Metropolis LE Auto Fuji White

The battery pack consists of 2 12v 22Ah Lead Acid Batteries (serially 24v 22ah) and weighs 32lbs (14.5 Kg). From what I gather in various adverts, converting to Lithium will halve this.

Its heavy at arms reach when loading into boot, that would possibly allow me to load scooter in, complete with battery installed, and use scooter wheels to manoeuvre across boot.

Click image to enlarge
 FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
FL2 Metropolis SD4 Auto 2014 2017- (16k - 74k+ miles) (MY2015)

Post #422579 21st Jun 2022 3:19 pm
View user's profile Send private message View poster's gallery Reply with quote
Lightwater



Member Since: 21 Aug 2014
Location: Sydney Northern Beaches
Posts: 4704

Ukraine 2013 Freelander 2 2.0T SE Auto Fuji White

In this situation for OH&S I would go lithium regardless of the price, doing your back in will be a far more expensive exercise in every aspect. Even if you still have to load seperatly I would still go for lithium.

It's the reason I use 10 litre fuel containers on the roof when in the outback. With petrol each weigh 9kg. I would not want to be lifting 20 litres into a cradle on the roof. My solar panels weigh 13.5kg & I have designed their cradle so they slide onto & in. The 6th wheel at 30kg I pray we don't get punctures that I can't repair as it is an accident waiting to happen getting the wheel on or off the roof. It's hard enough getting a wheel out of the boot. Procrastination, mankind's greatest labour saving device!

Acoustic insulation ARB TPMS 3xARB air compressors After cooler Air tank On-board OCD pressure air/water cleaning Additional 50L fuel Carpet in doors ABE 2x1kg Waeco 28L modified fridge Battery 4x26ah Solar 120w Victron MPPT 100/20 DC-DC 18amps 175amp jumper plug Awning 6x255/60R18

Post #422587 21st Jun 2022 7:29 pm
View user's profile Send private message View poster's gallery Post Reply
Post Reply  Back to top
Page 1 of 1
All times are GMT

Jump to  
Previous Topic | Next Topic >
Posting Rules
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum



Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
Freel2.com RSS Feed - All Forums


Switch to Mobile site