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2021 Dreifels 51Ah pack capacity update

Since purchasing my new 51Ah pack over four years (as per today 4 years, 7 months and 6 days) ago, I’ve been tracking the degradation of the pack’s capacity over time with periodic long-distance full-cycle trips. With one of the first nice and not freezing days in 2021, I thought it would be nice to […]

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Pre-TDE2019 balancing

Balancing batteries is an important part of maintaining pack health. Especially with a battery pack that doesn’t have an active cell-level BMS monitoring every cell. TWIKE 560 currently has three 100-cell stacks which all would need an own balancing connection – a BMS would be adding weight, considerable amounts of cabling and complexity to the […]

Two years in: Testing Dreifels 51Ah Pack Capacity

How time flies – it’s already been 2 years since I installed my 51Ah 17.7kWh LiNiCoAlO2-Cell-based battery pack. For better battery health and less ageing my daily charge is only to 3.8V cell charge, I never discharge below 3.3V and balance the cell packs from time to time. As my daily commute is only around […]

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New Battery Pack: How far can I go on a charge?

Every time when changing something related to batteries, many other parameters potentially change at the same time: Chemistry, response to load, max/min voltages and discharge curves, etc. In a way, it feels like being a novice TWIKE pilot again – you really don’t know how your battery will react and – in consequence – how […]

Finally: My 51Ah pack has arrived!

Samsung’s 35E cells weren’t available when I ordered TW560’s new Dreifels 51Ah battery pack. Thanks to a very kind offer by Ralph from dreifels, I was still able to go on my yearly TWIKE adventure and experience a large pack / range with his personal 29E/45Ah pack. During my vacation Dreifels sent me an email […]

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A 2nd Life for TW560’s previous batteries

My last battery-related entry was on TW560 getting a new battery pack. (Finally, I have the time to write an entry after my epic 10-day TWIKE adventure across some of the highest passes of Europe with less charging stops. 🙂 ) This entry is dedicated to the previous’ pack’s second life as a stationary battery […]

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TW560’s *New Battery Pack Installed*

I’ve been hinting at this for a while now: TW560 is getting a major battery upgrade. Today, I’m very happy to report that the first phase of this upgrade has been completed. My TWIKE is definitely ready for our upcoming 11-day, 2500km yearly trip, TDAF2016. This upgrade has been in the making for a very […]