This is the Onyx 4.8V NiMh 2000mAh AA Square Receiver Battery Pack with Universal Connector.
Ideal for .40 size and larger aircraft, nitro cars, trucks and boats
2-year limited warranty-Onyx brand batteries are warranted to be free from defects in materials and workmanship for a period of two years from the date of purchase. During the first twelve months, ONYX will, at our discretion, repair or replace without service charge any product deemed inoperable due to those causes. After the first full year of warranty coverage ONYX will provide extended warranty coverage for another 12 months covering only defects in materials and workmanship. Extended coverage is limited and does not cover problems caused by abuse, misuse, and improper maintenance, failure to follow instructions, ordinary wear, or use past the battery's maximum rated number of cycles.
Onyx 4.8V NiMh 2000mAh AA Square Receiver Battery Pack with Universal connector
Compatible Battery Charger
Capacity: 2000mAh
Number of Cells in Series: 4
Rated Voltage: 4.8V
Max Charge Rate: 2.0A
Discharge Lead: 22AWG, 4.7" (120mm) long not including connector
Pack
2.0 x 1.1 x 1.2" (51 x 29 x 29mm)
Weight: 3.9oz (110g)
Cell Size: AA