2 Packs of unsold C-size (baby) batteries were spotted in the local Lidl store at 3.49 EUR including VAT per double pack. Manufacturing date: 2016/05. Eures GmbH, Reiffeisenstraße 30, 70794 Filderstadt, Germany.
Curious as I am, I calibrated and adjusted my SkyRC MC3000 for both voltage and current. Then I changed the discharge/charge cycle program to -2mV delta V charging at 0.80A and discharging at -0.40A, charge resting: 150 minutes, discharge resting: 150 minutes, cycle count: 5 cycles, cycle mode: D>C (discharge-charge), target voltage: 1.65V, delta peak: 2mV, trickle charge: off, trickle time: off, restart voltage: off, discharge reduce: off, (discharge) cut voltage: 0.90V, cut temperature: 45ºC, cut time: off.
Tronic C-cell capacity results:
#1: 4098 mAh
#2: 4202 mAh
#3: 4156 mAh
#4: 4326 mAh
Tronic 4000 mAh cell average voltage results:
#1: 1.448V
#2: 1.434V
#3: 1.414V
#4: 1.428V
The Tronic baby cell (0274863) individual cycle capacities:
#1: 1962mAh, 3661mAh, 3692mAh, 3673mAh, 3696mAh
#2: 3012mAh, 3711mAh, 3708mAh, 3702mAh, 3708mAh
#3: 2400mAh, 3715mAh, 3720mAh, 3742mAh, 3735mAh
#4: 2598mAh, 3743mAh, 3750mAh, 3787mAh, 3762mAh
Tronic 4000 battery internal resistance (IR):
#1: 249mOhm
#2: 225mOhm
#3: 53mOhm
#4: 39mOhm
Tronic Energy Eco 4000mAh battery temperature:
#1: 23.1/45ºC
#2: 24.5/45ºC
#3: 23.8/45ºC
#4: 23.5/45ºC
Total charge discharge runtime:
#1: 3 days 18 hours 55 minutes
#2: 3 days 22 hours 40 minutes
#3: 3 days 21 hours 18 minutes
#4: 3 days 22 hours 55 minutes
Charge-discharge energy efficiency:
#1: -4.520Wh/5.930Wh = 76.2%
#2: -4.516Wh/6.019Wh = 75.0%
#3: -4.643Wh/5.868Wh = 79.1%
#4: -4.643Wh/6.171Wh = 75.2%
Curious as I am, I calibrated and adjusted my SkyRC MC3000 for both voltage and current. Then I changed the discharge/charge cycle program to -2mV delta V charging at 0.80A and discharging at -0.40A, charge resting: 150 minutes, discharge resting: 150 minutes, cycle count: 5 cycles, cycle mode: D>C (discharge-charge), target voltage: 1.65V, delta peak: 2mV, trickle charge: off, trickle time: off, restart voltage: off, discharge reduce: off, (discharge) cut voltage: 0.90V, cut temperature: 45ºC, cut time: off.
Tronic C-cell capacity results:
#1: 4098 mAh
#2: 4202 mAh
#3: 4156 mAh
#4: 4326 mAh
Tronic 4000 mAh cell average voltage results:
#1: 1.448V
#2: 1.434V
#3: 1.414V
#4: 1.428V
The Tronic baby cell (0274863) individual cycle capacities:
#1: 1962mAh, 3661mAh, 3692mAh, 3673mAh, 3696mAh
#2: 3012mAh, 3711mAh, 3708mAh, 3702mAh, 3708mAh
#3: 2400mAh, 3715mAh, 3720mAh, 3742mAh, 3735mAh
#4: 2598mAh, 3743mAh, 3750mAh, 3787mAh, 3762mAh
Tronic 4000 battery internal resistance (IR):
#1: 249mOhm
#2: 225mOhm
#3: 53mOhm
#4: 39mOhm
Tronic Energy Eco 4000mAh battery temperature:
#1: 23.1/45ºC
#2: 24.5/45ºC
#3: 23.8/45ºC
#4: 23.5/45ºC
Total charge discharge runtime:
#1: 3 days 18 hours 55 minutes
#2: 3 days 22 hours 40 minutes
#3: 3 days 21 hours 18 minutes
#4: 3 days 22 hours 55 minutes
Charge-discharge energy efficiency:
#1: -4.520Wh/5.930Wh = 76.2%
#2: -4.516Wh/6.019Wh = 75.0%
#3: -4.643Wh/5.868Wh = 79.1%
#4: -4.643Wh/6.171Wh = 75.2%
