What is the car cold start battery capacity

China's automobile starting lead accumulator The battery, according to GB/T5008 2-91 standards, divided into rubber fixed on the shell and plastic shell, plastic shell under stationary etc.

Series single cell count: refers to the number of the single cell battery assembly contains, expressed with Arabic numerals.

Battery type: according to its main use, start type lead-acid batteries with "Q", said code Q is "up" the first Chinese characters phonetic alphabet.

Battery characteristics: as an additional part, only in the similar usage of products has some characteristic, and in the model must be used when difference. When the product has two kinds of characteristics at the same time, should according to table 3-2 order to two codes for logo.

Common battery product features code table 3-2 serial number 12345 products wet charged dry charged less maintenance and maintenance-free gel electrolyte code AHWSJ rated capacity: refers to the rated capacity of 20 h discharge rate, expressed with Arabic numerals. Rated capacity of the unit for a. h, can omit don't write in the model.

Sometimes behind the rated capacity in a letters special performance, high G - said starting rate, plastic shell, D - S - said said the cold starting performance is good.

Xiali TJ7100 type, for example, car battery model with 6 - QA - 40 s: consists of six single cell battery, rated voltage of 12 v, rated capacity of 40 a. h priming dry charged lead battery, adopting the plastic shell.

"6" refers to the battery is composed of six monomer, because each monomer is 2 volts, so 6 monomer is 12 v, so "6" particles directly as this is a 12 v battery."QA" Q means "starting" type, A mean "dry lotus battery". To be sure the meaning of "dry lotus battery" is not a dry cell, but haven't been sold out when stored in the dry body cells form, to join the electrolyte when sold 20 minutes after starting the car without charge.120 ah refers to the capacity of the battery. How much electricity can be popular said is. So together is: this is a 12 v, dry batteries, commonly used in automobile starting his capacity is 120 ah.

Battery under the condition of normal, have, factors which influence the capacity of the water shortage; Proportion of the electrolyte, and the appropriate; Long time storage charge not in time, serious loss of electricity, substrate sulfide;

Charging current is big, cause the battery overheat water loss, bulge. A decrease in capacity.

Because of high charging voltage, the charging current is too large, plate bending, plate filler loss, causing serious self-discharge, even plate short circuit.

Intense discharge battery, short circuit.

Is the capacity of the battery factory has designed, mainly depends on the plate thickness and size, and adhered to the plate of lead paste has a direct relationship. Every car or other equipment with battery from size, capacity, starting current and so on are different, such as the Great Wall is also a model of gasoline and diesel, it also is 60 when the battery capacity, commonly known as the starting current of CCA 640, 475 starting current, but their starting current is different, because diesel instant starting current demand is big, but not for long, the duration of the starting current than diesel and gasoline vehicles current requirements. But the discharge time is longer, approximately.,

Due to the storage battery electric energy is affected by temperature is large, high village electric energy when the high temperature, low temperature become low many so when I was at different temperatures, with the launch of the energy becomes important, such as a car boot between energy is 400 a - 500 - a if the battery electricity capacity because of temperature for smaller, can cause under the low temperature environment phenomenon and so cannot be started in the manufacturing of battery design should consider these factors when, try to improve the low temperature start energy, so the energy in low temperature started as a measure of the reliability of the battery standard,

Cold start the capacity of the electrolyte temperature is 25 ℃, with 5 min rate of discharge current (3) times the nominal capacity of current continuous discharge to the provisions of the termination voltage (6 V battery is 4.5 V, 12 V battery for 9 V) when the output power. The discharge duration should be at least 5 min.

For example, 3 - Q - 90 type battery (nominal capacity of 90 AH) at 25 ℃, 5 min to 270 a current discharge, battery terminal voltage of 4.5 V, the start capacity of 270 ax = 22.5 (5/60) hours AH

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