By measuring the supply voltage or signal voltage of the connecting parts or leads of the controller, we can analyze and determine the fault of the controller. Referring to the main phase check measurement diagram of the brushless controller, a multimeter DC voltage of 50v is used to detect the relationship between the gate voltage…

The most important thing to maintain for a foldable electric bike is a battery. It is best to discharge and charge the battery at regular intervals. Usually two or three weeks. This can activate the capacity of the battery, so that electric bicycle run more time. If you have bought foldable electric bike in the…

Recently, some data show that the sales data of electric bicycles in the United States ushered in explosive growth, with an increase of more than 400. Sales as high as 26.3 w, of which 80% of the sales from Chinese companies to provide. Most of the electric bikes sold in the United States are high-end…

First of all, the maintenance of bicycles after rain do not use sewing machine oil. Sewing machine oil is a kind of thin lubricating oil. If it is used on bicycle, it will dilute the original butter in the car and reduce the lubricity and antirust performance of the oil. Therefore, No. 30 oil or…

In 90s the manufacturing process in Shanghai represented the highest level in the country, so made in Shanghai represented quality. The electric car industry still has this phenomenon, many folding electric bike are under the banner of Shanghai. The Shanghai Bicycle Association has issued a certificate of origin that can only be approved by a…

How fast is an electric bike? The dashboard of an electric bike is generally virtual and the speed has been adjusted. At present, the speed of the universal motor is at 32kmg / h, 48v / 350wN, and the special motor can reach more than 50 kms. The battery power of the folding electric bike…

After charging the lamp, the test instrument is used to detect the data. The voltage of the new battery is not higher than 59.5, and the battery of folding electric bike about half a year is not higher than 58.8, which is normal, and the voltage above this voltage may not turn the lamp. Low…

Now the lead acid battery is generally used, the regular detection of lead acid battery must detect the actual capacity, generally 0.5 c as the standard discharge rate of 2 hours capacity value, if not up to the manufacturer's prescribed capacity value. It can be changed during the repair period. Measure the terminal voltage of…

In rainy days, it is best not to ride electric vehicles. If there are no other means of moving, you should try not to let them rain. The simplest way is to cover up the controller. In addition, when the electric vehicle is stored in the open air, the battery should be removed and placed…

Set the multimeter in 20 V DC) gear, first measure the high and low potential of the gate handle output signal. If the signal of the knob has a potential change of more than 4 v when kneading the knob, the malfunction of the knob can be eliminated and fat tire electric bike has no…

If you don't have the most basic life span of a year, here are a few reasons: Charger: two-stage charger circuit is simple, cheap, and easy to cause voltage instability. Overshoot, floating, unprotected, directly affect fat tire electric bike life. Controller: low cost, incomplete function, excessive discharge current, no overload, undervoltage, current limiting protection, resulting…

Reason 1: there is no voltage between the positive and negative leads of the dial because the wire or connector is broken. Processing method: reconnect Cause 2: fat tire electric bike damage Treatment: reshuffling the luminous tube Reason 3: there is a breakdown on the dial board Treatment: replacement of circuit board Abnormal motor operation…

Reason 1: deviation of fixed magnetic steel Treatment: rebonding The gap between 2: carbon brushes is not uniform Treatment method: correction of carbon brush gap Reason 3: there is a short circuit between the positive and negative electrodes of the battery Treatment: elimination of short circuit Cause 4: turn to turn short circuit Treatment: fat…

In order to meet the short-term and high capacity charge of electric bicycle battery, the constant voltage value has to be increased to 2.47 V or 2.49 v in the three-stage constant voltage current limiting charging. In this way, the oxygen evolution voltage of the positive plate and the hydrogen evolution voltage of the negative…

Pay attention to pedal booster start. When electric bicycle starts, use pedal booster to avoid excessive discharge current and damage battery. If the electric bicycle does not use for a long time, pay attention to the battery charge and then place, check the electricity monthly and check fat tire electric bike; Do not add alarm.…

Charge in time after using up. Do not allow electric vehicle battery to be placed for a long time without electricity, otherwise the battery plate will be sulphate. Recharge once a week. The green light, said battery can be used or basically adequate power, but from 100% there is a gap, every week or every…

Battery grid Battery grid is an important component to determine the sealing performance of the cell. Now the battery grid produced by electric bicycle manufacturer mainly adopts lead-calcium-tin alloy. This alloy is one of the core technologies of sealed batteries. However, improper handling will cause the battery to have an early loss of capacity, and…

At present, the batteries used on electric bicycle include sealed lead acid battery, lithium ion battery, nickel hydrogen battery, lead cloth battery and so on. However, the technology of lithium ion battery, nickel hydrogen battery and lead cloth battery are difficult to overcome in technology, so that fat tire electric bike cannot reach the level…