Another one here happy with the Banner. Maybe not high powered by your standard at 170bhp, standard-ish compression ratios. I had a Banner fail shortly after I got the car, I have no idea how long it had been on before I got it and it was before I understood about conditioning chargers over winter, so was probably my fault! The replacement is still going strong. I've had the car 10 years.
SV VVC 170 - 170.4 bhp @ 7100 rpm - 142.4 ft.lb. @ 4900 rpm
With an honest look in the mirror there is no point my upgrading to a lighter battery. When I have had to replace Banner's it has usually been my fault.
1.6K Roadsport SV
I note on this thread a lot of people using trickle chargers, CTEK etc. I used to use these but last winter tried the other option of switching the power off via the main cut-off (red) key. Whenever the car is in the garage, the power is switched off and no issues whatsoever. Started first time after last winter's lay-up.
I mention it as switching the power off doesn't run the risk of lowering the electrolyte level.
Re #14: Good point, Dave. What battery do you have?
I went through 3 Banners and an Ultramax in 10 years, generally 2 hours a day on a CTEK conditioner, battery disconnected during winter lay up. Ended up fitting an isolator switch a few years ago as I too think it's much better than a conditioner.
Last spring I fitted a Skyrich HJT12B-FP LiFePo battery (a lucky £44 Amazon deal). It sat unused all winter in an unheated garage and the battery lost none of it's charge, started straight away.
According to the instructions that came with it, the only limitation on charger type is the charging voltage must not exceed 14.5v and the spec of my CTEK 0.8S seems to meet this. Although I've never needed to put it on charge so it's not been a problem so far.
Obviously too early to comment on the longevity beyond the 18 months it's been fitted, but so far I'm impressed. Weighs a smidge under a kilo as well.
I put my 5 yo Banner on an Optimate during the summer months when I'm using the car and completely disconnect in winter. Seems to work.
Re #15. I have a Banner. Looking at the invoice its listed as a 53034 Caterham Lawnmower Battery
It was fitted October 2020 so has been through 2 winters. Never been on my CTEK charger, I just switch off the isolator whenever it's in the unheated garage.
I am very happy with the Banner on my 1600 Sigma and previous K. Sufficient capacity and cranking current and fairly inexpensive. I check the electrolyte twice a year. Over winter I disconnect and do an occasional top-up charge. In the summer I will connect the CTek if I am not using the car for a week or so. I personally wouldn't use a timer to switch the charger on and off.
timer is perfect for li on batteries,
Update to my initial post ...
Last Thursday morning i fitted a Banner before heading north on the Scotland trip, it's not failed to start since. Clearly due to being started every day it should have easily remained fully charged, but I'll know after a few days of standing whether it's better than the Odyssey. Interestingly there's been no negative effect on cranking using the Banner which was my biggest fear with a higher powered engine.
Caterham and Lotus Seven Club Leadership Team Member
The register for all numbered limited-edition Caterhams ....... www.thecaterhamregister.net ...... www.instagram.com/thecaterhamregister