4S- Li- Ion SOTA battery

2020-07-15 11.37.27

This battery consists of recycled Li-Ion cells type 18650.

Time and again, we have to deal with defective Li-Ion batteries in the repair café next door where I’m working in. Usually individual cells became defective or the battery management unit is broken. The (remaining) cells are sometimes still as good as new (i.e. close to their original capacity) – too good to throw away!

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DM/BW-852 – Herrenwald – 910m (3)

Abstract:

July 19th, 2020, 11:20 – 13:35 UTC
My third activation of Herrenwald.

Wx: Sunny, few clouds, temp about 20°C
Walking time: 10 min up, 8 min down
Ascent/ descent: Approx. 70 metres

Rig: KX3 / 10W, 2.5Ah Li-Ion 4S battery, Palm Pico Paddle
Ant: 22 m end fed wire with QRP L- Tuner as inverted V in a  tree.

Condx on all bands were averag at best. The number of QSOs was down compared to the last activations. On the higher bands sporadic E was present which allowed many short skip contacts into EU. k = 1, SFI = 69

19 CW QSOs on 40m – 3 x S2S
8 CW QSOs on 30m
10 CW QSOs on 20m – 2 x S2S
5 CW QSOs on 17m – 1 x S2S DX
2 CW QSOs on 15m

Highlight:
S2S DX QSO with N1ZF on W1/HA-157.

Lowlight:
None

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DM/BW-058 – Burg– 975m (2)

Abstract:

July 19th, 2020, 8:30 – 10:00 UTC
My second activation of Burg.

Wx: Sunny, no clouds, temp about 18°C
Walking time: 18 min up, 12 min down
Ascent/ descent: Approx. 100 metres

Rig: KX3 / 10W, 2.5Ah Li-Ion 4S battery, Palm Pico Paddle
Ant: 22 m end fed wire with QRP L- Tuner as inverted L in a  tree.

Condx on all bands were averag at best. The number of QSOs was down compared to the last activations. k = 1, SFI = 69

13 CW QSOs on 40m – 4 x S2S
21 SSB QSO on 40m – 4 x S2S
7 CW QSOs on 30m – 1 x S2S
2 SSB QSOs on 20m – 2 x S2S

Highlight:
Nice hike to a quiet summit.

Lowlight:
None

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DM/BW-046 – Plettenberg – 1002m (2)

Abstract:

July 4th, 2020, 10:30 – 13:30 UTC
My second activation of Plettenberg.

Wx: Sunny with some clouds, temp about 21°C
Walking time: 15 min up, less than 10 min down
Ascent/ descent: Approx. 100 vertical metres

Rig: KX3 / 10W, 2.9Ah AGM battery, Palm Pico Paddle
Ant: 22 m end fed wire with QRP L- Tuner as inverted L on a  6m squid pole.

Condx on all bands were good. On 20 metres sporadic E was present which allowed many short skip contacts into EU. k = 1, SFI = 68

41 CW QSOs on 40m – 8 x S2S
12 SSB QSO on 40m – 5 x S2S
20 CW QSOs on 30m – 4 x S2S
16 CW QSOs on 20m – 2 x S2S
1 SSB QSOs on 20m – 1 x S2S

Highlight:
20 summit to summit QSOs with more than 130 S2S points 🙂

Lowlight:
None

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