BEIJING — China's major battery manufacturers reported skyrocketing profits during the first 10 months of this year, official data showed.

Profits of major battery companies hiked 48.4 percent year-on-year to 28.08 billion yuan ($4 billion) during the 10-month period, according to data from the Ministry of Industry and Information Technology.

Business revenues of major battery makers climbed 13.5 percent from a year earlier to 639.61 billion yuan.

Among the industry's staple products, lithium-ion batteries logged an output of 12.28 billion units during the period, up 1.8 percent year-on-year, while the output of primary batteries and battery packs reached 32.9 billion units, a 2.8-percent increase.

Major battery companies refer to those with an annual business turnover of at least 20 million yuan.