Several commonly used electric bicycle battery models and their judging methods

This article is written about lead-acid battery, the commonly storage battery modules used on the electric bicycle, not lithium ion battery. Then explain two important parameters: voltage and capacity. They are lead-acid battery ID to collect the data.

Lead-acid battery 2 v voltage for each cell, each monomer battery is composed of six units, voltage is 12 v. Electric bicycle is the most commonly used lithium battery pack us is 3 or 4 battery series, three series of 36 v, four series of 48 v. Now there are 16V is composed of eight cells monomer battery.

Lead-acid battery capacity is made up of voltage regulation, with 12 V lead-acid battery as an example, the minimum operating voltage of 10.5 V, a maximum working voltage of 13.5 V, the highest working voltage discharge to the minimum working said 100% discharge voltage, the battery stop working, and the process out of power is the capacity of the battery.

We combine batteries voltage and capacity to see below:

36 v common capacity: 10 ah; Individual and 14 ah 20 ah, 17ah.

48 v common capacities are: 10 ah, 12ah, 14ah, 120ah; Individual and 15 ah 18 ah, 22 ah, 24 ah.

After some consumers to buy electric bikes may not know what type of concrete, at that point can be identified from the charger, the method is on the charger output voltage and output current comparison:

In general, 36 v battery labels for: "36 v - 42 v, output voltage DC by A". Corresponding relationship between output current and the capacity of the battery are: 1.5 A corresponding 10 ah, 1.6 A corresponding 12 ah.

48 v battery labels for: "output voltage - 59V, 48 v DC (A". Corresponding relationship between output current and the capacity of the battery are: 1.7 A corresponding 10 ah, 1.8 A corresponding 12 ah, 2.0 A corresponding 14 ah, 2.3 A corresponding 17 ah, 2.5 A corresponding 20 ah.

In addition to the charger labeling method, also can be calculated by the battery itself. As mentioned above, the present monomer with an average of 12 v lead-acid battery (6 cells) and 16 v (8 battery units), indicate on the monomer battery again due to the combination of the lead-acid battery is in series, so it can be product of monomer battery voltage and the number of number of battery voltage, battery capacity and monomer battery capacity is equal. For example, 3 batteries in the battery compartment open after arrival, if this is 16 v 3 batteries, so, the battery voltage is 16 v * 3 = 48 v. If this section 3 is the 12 v battery, so, the battery voltage is 12 v * 3 = 36 v. So, when the battery box opens the coma four existing batteries? At this time, if this is 16 v 4 batteries, so, the battery voltage is 16 v * 4 = 64 v; If the three battery is 12 v, so the battery voltage is 12 v x 4 = 48 v.

Is visible, with 48 v battery pack, both may be 3 batteries in series, it is possible that the 4 batteries in series.

Capacity can be identified easily, such as the cell body indicated in "six - DZM - 10" means that the battery/battery pack is 10 ah, such as the cell body indicated in "six - DZM - 12" suggests that it is 12 ah battery/battery pack. Virtual target battery capacity is not in the scope of this discussion.

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