Looking after Lithium Batteries

Battery care.

To be honest Iโ€™ve learned over the years that batteries perform better at room temperature, this actually isnโ€™t the case with Li-ion batteries, they like to be really cold, especially when you store them for a few months. So seeing as a new battery pack can cost hundreds of pounds I did some quick research and this is what it boils down to.

1. You should only charge a lithium battery to 100% when you need to use the battery for extended periods that day or the day after. Try to keep the charge between 20% and 80%
2. NEVER NEVER NEVER let the battery drain below 10%.
3. Around the 30 cycles, (one cycle is 80%-20% of battery power) discharge the battery as low as you dare. So at the 5% mark give it a good long charge.
4. Store the battery at 40%, DO NOT charge it to 100% and store it. Storing the battery is for 3 months or more.
5. Freeze the battery! I know right, it doesnโ€™t make sense. Freeze the battery at roughly 30% charge in a carrier bag so it can breath a little.

To summarise.
Keep the battery level between 80% and 20% for normal every day use. Discharge the battery every 30 charges, and store it for long periods at 40% charge. If you can freeze it when you store it then even better.

Li-ion should last for 300-500 charges, and if you follow the above then it should last nearer the 500 charges.
Source: http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

Crossfire-E Will it go 45 Miles with one charge?

Last week I had my first ever holiday on my own and my first holiday in nearly 3 years, my first day off, my first lie in and my first holiday with my E-Bike. Before I set off I planned a trip around Loch Linnhe and Loch Eil with Google Maps.

The maximum assist I used was 25%

Just in case the map doesn’t work properly, here’s a link to the proper route.

The total distance I rode was just a little over google’s estimate as I detoured around Inverlochy looking for a bike shop that sells waterproof pants and gloves. Thanks to Nevis Cycles for the gear and for taking my hard earned cash off me (with a small discount too ๐Ÿ™‚ ). I set off with the intention of just riding down to the Corran ferry and retracing my route back, but the weather was glorious, I had my snacks with me, plenty to drink and almost zero traffic, so what the hell right!

To be honest, there are only few minor hills on this route, the highest climb I think was around 30 meters, so not too tough at all. Most of the riding is smooth and flat… Nirvana ๐Ÿ™‚

I also brought with me a new gadget… Zhiyun Smooth Q, it’s a gimbal for use with smart phones and apart from me swapping hands the video is silky smooth and wobble free. It’s also a short video, my phone battery wouldn’t last for the 3 hour duration and nor would the storage, the 45 minute video used 14GB of space though it is shot at 4K.

The bike battery did technically last the full ride, dropping down to 2% at the end, I was impressed, it’s now an 18 month old battery and it’s done 1,500 miles in Yorkshire and all it’s hills. What I didn’t know however, the last 5% seriously reduces the power output to short pulses to conserve the remaining energy and get you home. But by the time I get to the shore opposite Linnhe Lochside Holidays I was knackered, and riding the bike one handed and filming meant I asked more of the battery too, and that showed signs that it couldn’t get me back on full power, I’d have a fair bit of work to do with little assistance. But I didn’t know that just yet. One other thing of note… the weather at this point changed and it utterly pissed it down the rest of the way… but at least I had my new waterproofs ๐Ÿ™‚

I was now miserable, knackered, cold, and I still had around 15 miles to go. Of course I made it back I had no choice, and this isn’t a ghost writing this blog post, though I’ve warmed up since then ๐Ÿ™‚

Like I said, this isn’t the full video, the battery and storage wouldn’t last for a 3 hour ride, but I am surprised I did it in 3 hours when Google Maps recons on a 4 hour ride. So Yay for me ๐Ÿ™‚

So can it do the 60 miles Halfords advertise? Like I said in my initial review, Yes it can, with a flat ride, and a fit and competent rider it could. Had I not been recording I think it would have made all the difference, also had I stopped for more than a minute to munch a banana and a packet of crisps and had a 10-20 minute rest, I think I could have made it back sooner and with more power left in the battery. But I was left with enough anxiety after the ride that I didn’t attempt it again that week.

Anyway, enjoy the video, the Highlands are gorgeous, even when it rains.

 

Other rides I did that week:

https://connect.garmin.com/modern/activity/1975982607

https://connect.garmin.com/modern/activity/1979232456

https://connect.garmin.com/modern/activity/1973350700

https://connect.garmin.com/modern/activity/1971566684