Our ER batteries can replace WR batteries in low-temperature

One of our customers needs WR26700 to work, within one hour, the load current should not be less than 1.75A, and the load voltage on each battery should not be less than 2.0 V, even for a short time after starting at -40C.  our Eri26500 was tested and here is the result:
A．Test products and items

1. Test products

Model: ERI26500M  Type: Li/SOCL2

2. Test items

Test the electrical performance of the ERI26500M battery at -40 ° C and 23 ° C (2000mA continuous discharge to 2.0V).

3. Test Equipment

3.1 Special testing machine for Li/SOCL2battery - Xinwei constant current tester model-BTS612；

3.2 VC890D digital multimeter；

3.3 win2000 system Lenovo computer；

3.4 Programmable constant temperature and humidity test chamber -50℃-180℃。

B．Testing method

1. sampling battery 2 PCS；

2. The two batteries were laid aside for 2h at -40℃ and 23℃ respectively；

3. Set discharge step (2000mA constant discharge to 2.0V)；

4. Summarize the data and form a report

C．Test data and curves

1.ERI26500M Discharge data and curves at different ambient temperatures

1# ER26500M At 23℃ discharge curve      2# ER26500M At-40℃discharge curve

D．Data summary

Based on the objective data

1. ERI26500M battery, under the condition of 23℃ ambient temperature, the discharge capacity is 3393mAh, the discharge platform is 3.30V, and the discharge time is 1:41 according to the test condition (2000mA continuous constant discharge to 2.0V) greater than that provided by the customer.

2.ERI26500M battery, under the condition of ambient temperature -40℃, if the test condition is greater than that provided by the customer (2000mA continuous constant current discharge to 2.0V), discharge capacity is 905mAh, discharge platform is 2.46V, discharge time is 0:27;

3. During 1 hour (actual test 1 hour 41 minutes), the load current should not be less than 1.75A

(Actual test 2A), the load voltage on each battery should not be lower than 2.0V, even in the temperature

of -40℃ (2.0V, can be continuous discharge for 27 minutes) after the start of a short time to ensure this parameter, prove that the ERI26500M battery can meet the regular use of customers.