This site is closing

This site will close soon, probably at the end of this months billing cycle, in around 3 weeks.

The reasons:

  1. Constant hacking attempts, as many as 200 per day. They’re coming from all over the world, so a script kiddie trying to get access by using incorrect usernames. I have a firewall in place that bans them after one failed attempt, this is fast becoming a very large part of the database and .htaccess file.
  2. The site at certain times of the day can take an age to load. This is unnaceptable and throwing money at the problem won’t help.
  3. I’ve contacted several retailers and manufacturers to see if they’ll loan me a bike for a few days so I can expand the reviews to cover other models… none have called me or emailed me back.
  4. I can’t be arsed updating with new posts. There’s also little to cover if I can’t get hold of loan bikes to test and review.
  5. I might one day setup the site on my local network on a raspberry pi, and yes believe it or not, it would be faster than the current host.
  6. I’m also considering selling my bike. I am a carer for my uncle who is mentally handicapped, I get 3 days a week when I have a respite carer come in and look after him for a few hours. So of course riding is dependent on the weather and if I have other errands to run in my spare time. As things are. I don’t want to get soaked, cold and miserable during this time.

At LAST! A Spare Battery, and my old one is a donor for experimenting.

In my last post I considered a new battery because mine is getting a little weak, and this week I ordered a new battery and have just had it delivered.

With the battery came a leaflet from the manufacturer, Phylion in China. Jinshajiang Road, New District, Suzhou, P.R. China. Postcode 215153

Tel +86-512-6832-0283

Model Number: JCEB360-11

36v 11.6AH

So that’s the company and battery details, my question is… are you someone who knows about electronics and BMS, do you know how to read and reprogramme said systems?
Can it go faster than 16mph? Can the cells be replaced with bigger amp hour cells?  Can a barrel connector be made to charge the battery on the fly (while cycling)?

JCEB360-11

JCEB360-11

JCEB360-11

JCEB360-11

JCEB360-11

JCEB360-11

 

Lithium Ion Battery Care

Batteries aren’t watt they used to be 🙂 See what I did there…? I’ll get my coat.

They used to be weak in comparison to today’s standards, they leaked worse than sewage into the Thames, they’d be flat in 10 minutes on today’s modern appliances and they were dangerous to just throw in the bin.

If you see bins for batteries anywhere, then that’s where you need to dump them, and they then get recycled! Far safer than landfill.

First off Ni-cad (Nickel Cadmium) had a “memory”, if you discharged them to say 50% enough times then the battery would think 50% is the full capacity. Do you remember getting a warning that the battery in your laptop of phone was empty, but it’d still run for hours right? That’s the Ni-Cad memory at work.

Li-Ion and Li-po are different to any battery you’ve ever had before, they don’t have a memory, they can be charged hundreds of times before you see any loss in capacity, and most importantly they are much more energy dense than ever… and they’re only ever getting better.

But you do still need to consider battery care, and occasionally you need to discharge them fully. Storage is also a factor if you’re not going to use them constantly. Today’s lithium battery killer is heat, (it used to be you could revive old batteries with a little heat), today’s batteries are effectively killed with heat. So keep them cool, especially when storing them.

So how to really care for your battery.

  • Only charge to 100% if you’re really sure you need 100%
  • Try not to charge more than 80% and never let the charge drop below 20%
  • After 30 charges, try to discharge the battery as low as you dare, and never never let it drop below 5%
  • Once a battery drops below 2.2v it’s dead, it can be resurrected with boost charges, but these can be dangerous if the battery internally suffered serious damage. Nominal charge for an 18650 is 4.2v
  • If you aren’t using the battery for a while drop the charge to 20% and store in a cool/cold place away from moisture.
  • Never charge to 100% and leave it on charge, let the charge dissipate slowly, you probably won’t notice a difference anyway.

The SRSuntour battery for the Carrera Crossfire-E should do up to 500 charges before you see any real degradation, but if you follow these simple tips, it should give optimum life beyond 500 charges.

Happy Cycling 🙂

Sources: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

And: http://www.techrepublic.com/blog/five-apps/five-tips-for-extending-lithium-ion-battery-life/