1.Single cell designation rule is composed of 6 parts:

First part: Double Panda abbreviation:DP.
Second part: Electro-Chemistry System
(For example: M-- Ni-MH,D-- Ni-Cd,L-- Li ion)
Third part: Model
(For example: A .AA.AAA.SC.C.D.F.B(Button cell)etc.)
Forth part:model
("H" means high cap ,No "H" means flat cap,For prismatic cell, 6&8 are the sub models we will distinguish them by adding bar between them and nominal capacity)
Fifth part: Nominal capacity
Sixth part: Discharge rate
( S: standard type P: high rate type)

For example:
DPM-AA2000S means Double Panda Ni-MH flat cap AA2000 standard type battery
O S M -- AA (H) 2000 S

2.Battery pack naming rule is composed of 8 parts:

First part: The number of cells
Second part: Double Panda Battery abbreviation:DP.
Third part: Electro-Chemistry System
(For example : M-- NiH,D-- Ni-Cd,L-- Li ion)
Forth part: Model
(For example: A .AA.AAA.SC.C.D.F.B(Button cell)etc.)
Fifth part: Sub model
("H" means high cap ,No "H" means flat cap,For prismatic cell, 6&8 are the sub models we will distinguish them by adding bar between them and nominal capacity)
Sixth part: Nominal capacity
Seventh part: Discharge rate
( S: standard type P: high rate type)
Eighth part: Configuration Type I.II.E.T.W.X.L

For example

3DPM-AAH2000SH means
3 -- 3 cells in the park
OS -- oceansun battery
M -- Ni-MH
AA -- model AA
H -- high cap
2000 -- nominal capacity
S -- standard type
H -- code II