Compatible Part No(use"Ctrl+F" to find your own PN & Model):

OP4050A,OP4015,OP4026,OP40201,OP40261,

OP4030,OP40301,OP4040,OP40401,OP4050,

OP40501,OP40601

Compatible Models: 

RY40180, RY40200, RY40022, RY40201A, RY40202, RY40204, RY40400, R40402,RY40402A, RY40403, RY40403A, RY40411, RY40502A, RY40503, RY40511, RY40601A,RY40LM30, RY40190, RY40430, RY40620, RY40460, RY40250, RY40770, RY40850,RY40610A, RY40210B, RY40240, RY40440

Charger Models:OP400, OP400A, OP401, OP403, OP403A, OP404A, OP406A, ZROP401

Item specifics:
1.Voltage:40V
2.Capacity: 8000mAh
3.Battery Type: Li-ion
4.Color: Black 
5.Warranty: 1 Year
6.Brand: Vanon

Features:
1.Intelligent program protection prevents from overcharge
2.High quality replacement battery
3.Compatibility with the original
4.Lower Price than Original OEM Battery
5.No memory effect.

Note:
1. The battery must be FULLY charged before first use.
2. The battery is stored in a cool and dry place.
3. Do not Separation, extrusion, and impact.
4. Do not put battery into water and fire.
5. Keep away from children.