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[dannsky]

Hi all!
I replaced the battery on my Zero S 2014 and in the process I ran into the problem of selecting temperature sensors. Maybe someone came across and knows what resistance thermistors should be in the battery, their number and connection scheme?
https://www.drive2.ru/b/622420339418228546/
https://www.drive2.ru/b/622851897732109561/

[talon]

I'll try to get the answer to you soon, you don't have the old cells still?

[dannsky]

I'll try to get the answer to you soon, you don't have the old cells still?

The old cells have been preserved. But only out of three bricks, only two remained intact

[NeverEnd]

Good Job dannsky !

In the datasheet of the IC we can see :

"The device is intended for use with a nominal 10 k? at 25ºC NTC external thermistor (AT103 equivalent) such as the Panasonic ERT-J1VG103FA, a 1% device. A suitable external resistor-capacitor network should be connected to position the response of the thermistor within the range of interest."

Is the block still works without temperature protection ?

[centra12]

Ordinary Zero Original Silicon Party

But if a manufacturer does not manage to construct a tight battery case he has to act like this
Are the batteries of the SR/F-S also Silicon Party?

[dannsky]

Good Job dannsky !

In the datasheet of the IC we can see :

"The device is intended for use with a nominal 10 k? at 25ºC NTC external thermistor (AT103 equivalent) such as the Panasonic ERT-J1VG103FA, a 1% device. A suitable external resistor-capacitor network should be connected to position the response of the thermistor within the range of interest."

Is the block still works without temperature protection ?

Greetings! In total, I connected four 10K thermistors. But I actually used the connection scheme based on my experienced electrical measurements. I don't know how correct it turned out to be. But... The battery stops charging in hot weather, 30 degrees Celsius and above. Also, the charger does not charge the battery at a temperature of 0 degrees Celsius and below. Does this mean that the temperature protection of the battery works as it should?

[DerKrawallkeks]

I can't answer that question, since I don't have an onboard charger, but I would like to ask which cells you used. (I read that it is pouch cells on your website, but I couldn't find which ones exactly). What was the cost?

Thanks!

[DonTom]

Greetings! In total, I connected four 10K thermistors. But I actually used the connection scheme based on my experienced electrical measurements. I don't know how correct it turned out to be. But... The battery stops charging in hot weather, 30 degrees Celsius and above. Also, the charger does not charge the battery at a temperature of 0 degrees Celsius and below. Does this mean that the temperature protection of the battery works as it should?

I can tell you I couldn't charge my 2017 Zero SR at just above  38°C, (100°F) but it would charge just a little below that. I don't know the exact temp.  I cannot say the low temp as I do not ride electrics when very cold. Then I ride ICE bikes if any bike at all.


-Don-  Auburn, CA

[dannsky]

I can't answer that question, since I don't have an onboard charger, but I would like to ask which cells you used. (I read that it is pouch cells on your website, but I couldn't find which ones exactly). What was the cost?

Thanks!

The cells are very similar to the regular ones installed in Zero battery packs. The cell brand is Jeve. Parameters: dimensions - 350x100x100; capacity - 50 Ah; internal resistance - 0.7 mOhm; charge current - 2C (max); discharge current - 5C (max)
The price of one cell is $40. Cells in the battery 56 pcs