Technical quality acceptance agreement

Party A:

Party B:

On the principle of mutual benefit and common development, both parties will jointly develop the electric vehicle market. Party B will provide the special battery for electric vehicles to Party A. After reaching a consensus through negotiation, the following agreements will be signed:

1. Technical requirements:

1.1 Appearance:

The battery shall have the signs of positive and negative, trademark, model, specification, manufacturer name, serial number, date of manufacture, etc., and the mark shall be clear, firm and not easy to fall off; the appearance of the battery is neat.

1.2 model:

6-dzm-10.

1.3 Dimensions and weight:

6-dzm-10: long. Width. High. Reference weight.

1.4 Use ambient temperature:

The colloidal battery can work normally in the range of -20 °C ~ 50 °C; the ordinary lead-acid battery can work normally in the range of -10 °C ~ 50 °C.

1.5 discharge capacity:

After the battery is fully charged, it is allowed to stand for 1 to 4 hours in a temperature of 25±5°C, and discharged to the battery voltage of 10.50v by the jb/t10262-XX standard. The discharge time is not less than 130min.

1.6 high current performance:

After the battery is fully charged, it is allowed to stand for 1 to 4 hours in a temperature of 25±5°C, discharged for 5 minutes at 3.0i2, the battery terminal voltage is not lower than 8.4v, and the conductive part must not be blown, and the appearance is not abnormal.

1.7 security performance:

After the battery is fully charged, it is continuously charged at 0.4i2 for 5 hours in a temperature of 25±10 °C, and then the appearance should be checked for no leakage and other abnormal phenomena.

1.8 seismic performance:

After the battery is fully charged, it is fastened to the vibrating table in an erect state at a temperature of 25±10 °C, and is subjected to amplitude 2; vertical vibration at a frequency of 16.7 hz, and visually confirmed that there is no leakage and other abnormal phenomena after 1 h. The voltage must be within the normal range.

1.9 battery life:

Charging according to 2.1, with the discharge requirement of 6.11 in the jb/t10262-XX standard, the number of cycles “colloidal environmental protection type” is not less than 450 times, and “normal lead acid type” is not less than 350 times.

1.10 terminal voltage and combination consistency:

The pairing single voltage is more than 13.0v, the voltage difference between two sections is not more than 0.02v; the voltage difference of three sections is not more than 0.04v; the voltage difference of four sections is not more than 0.05v.

1.11 Over-discharge capacity recovery performance:

The “colloidal environment-friendly” battery began to discharge to near 0v with the jb/t10262-XX standard, short-circuit the battery poles for 24 hours, and then re-charged. After repeating the above five discharges, charging, and shorting, the battery is discharged to a single section of 10.5v at jb/t10262-XX, and the discharged capacity should be greater than 90% of the nominal capacity.

2. Use of battery:

2.1 Battery charging:

"Colloidal environmental protection type" "Ordinary lead-acid type" battery charging: The battery is connected in series to form a battery pack with a rated voltage of 36v. The first stage: constant current 1.5~1.8a, the voltage gradually rises; the second stage: the voltage gradually rises to After 44.1±0.2v, the current is gradually reduced, and the current gradually drops to 400±30ma. The third stage: turbulent floating charge, voltage 41.5±0.5v, the current gradually approaches 0ma.

2.2 The battery should be replenished in time after being put on hold for a period of time.

3. Battery acceptance:

3.1 Acceptance content:

3.1.1 Appearance:

a appearance without deformation and cracks, the dimensions and weight should comply with the provisions of Article 1.3.

b There are positive and negative polarity, trademark, model, manufacturer name, date of manufacture, battery code and other signs, and the mark is clear and firm.

c The battery packed in the whole box should be accompanied by the inspection certificate, the instruction manual, the after-sales service guarantee, and the outside of the package should have a sign to remind the correct transportation.

3.1.2 Performance:

a Measure the polarity of the battery, which should match the positive and negative polarity signs.

b After opening the box, the open circuit voltage of the battery pack single battery should be no less than 13.0v

c After the battery is fully charged, it is allowed to stand for 1 to 4 hours. It is discharged to the battery pack voltage of 31.5v at the ambient temperature of 25±5°C with jb/t10262-XX standard, and its discharge time is not less than 130min.

3.2 Inspection method:

3.2.13.1.1 uses visual inspection, steel tape and scale.

3.2.23.1.2 uses a digital multimeter and a discharge meter.

3.2.3 After the first batch of supply and normal supply, Party B shall test 1.5, 1.7, and 1.9 every six months, and provide Party A with a written report approved by the state or industry.

3.2.4 Each batch is pumped out of a group of 3 batteries in the same package, and is inspected according to 1.5; 1.10. If the above requirements are not met, the sampling test shall be doubled according to the inspection rules. If the product is still unqualified, the batch of products shall be returned.

4. The two sides agreed:

4.1 Party A's responsibilities:

4.1.1 Party A shall inspect each batch of products provided by Party B according to the above rules. If there is any non-conformity or quality objection, it shall be submitted in writing or by fax within 10 days from the date of receipt of the goods.

4.1.2 For the battery that needs to be returned to Party B during the use process, Party A shall notify Party B's service personnel to go to the site for inspection one by one. If it does not meet the return requirements, Party B has the right to refuse the return or return the returned battery to A. square.

4.1.3 Party A shall require the customer to carefully fill in the relevant contents on the after-sales service guarantee provided by Party B, so that Party B can grasp the effective use period of the battery and establish the customer file.

4.2 Party B's responsibility:

4.2.1 The quality of the products provided by Party B to Party A must meet the above technical requirements.

4.2.2 Taking the 3×6-dzm-10 battery pack as an example, the maximum current of the electric motor of Party A is not more than 13.0a, and the normal working current is on the flat road surface with the ambient temperature of 25±2°C and the wind power of 1-2. The load of ~75 kg is not more than 7a; the relationship between the number of days of use and the mileage of Party B is 90 days 180 days 270 days 360 days

Discharge time 110min 105 min 95 min 72 min

Reference continuation mileage 35 ~ 55 km 30 ~ 50 km 20 ~ 40 km 15 ~ 35 km

Days of use 90 days 180 days 270 days 360 days 450 days

Discharge time 120 min 110 min 105 min 95 min 72 min

Reference continuation mileage 40 ~ 60 km 35 ~ 55 km 30 ~ 50km 20 ~ 40km 15 ~ 35km

Note: The reference mileage is carried out under the condition of ambient temperature of 25±5°C, normal vehicle and road conditions, maximum speed of 20km/h and load capacity of not more than 75kg; and related to vehicle efficiency such as motor efficiency and controller control parameters.

4.2.3 The warranty period of Party B's products under normal use conditions: “Ordinary lead acid type” and “Formula colloidal environmental protection type” are ex-factory for 15 months; use for 12 months. “Formula colloidal environmental protection type” is factory for 18 months; it is used for 15 months. As long as the two conditions of the warranty period are met, the warranty period is exceeded. If the following problems occur during the warranty period: 1 short circuit 2 open circuit 3 reverse pole 4 large area powder removal, after the inspection of both sides A and B, the battery capacity reaches the standard. It is said that 60% of the capacity is repaired or exchanged by Party B, otherwise it will not be underwritten.

4.2.4 Party B shall return the same type of battery to Party A according to the number of batteries returned by Party A last month that are confirmed by Party B as the responsibility of Party B:

a/Battery within 8 months of the factory, if the capacity drops significantly to less than 80% of the rated capacity, Party B is responsible for replacing the new battery and recalculating the warranty period;

b/Battery is 8 months away from the factory and if the capacity drops significantly to less than 60% of the rated capacity during the warranty period, Party B is responsible for replacing the maintenance battery with a nominal capacity of 80% or more. The three-pack period is from the date of manufacture of the original battery. Cumulative renewal.

4.2.5 Party B is responsible for recovering the “Huafu” used batteries of Party A's warranty period. The recycling method and price are separately set.

4.2.6 The special battery for electric vehicles that Party B is responsible for is responsible for product reputation and product liability insurance by the People's Insurance Company of China.

4.3. This Agreement is an affiliated file of the Supply Contracts of both parties and has the same effect. The place of performance is Gaoyou and the interpretation right is owned by Party B.

5. Other conventions:

person A person B:

Representative: Representative:

Phone: Phone:

Fax: Fax:

Date: Year Month Day Date: Year Month Day