1. Technical Details - Specification:

No.	Items	Specification
1	Nominal Voltage	22.2V
2	Nominal Capacity	28Ah	621.6Wh
3	Cell Model	High-quality Samsung 21700-40T cells
4	Cell Configuration	6S 7P
5	Maximum Continuous Current Draw *	110A	3.9C (This battery is CE approved,UN38.3 approved,with MSDS,certificates can be provided upon request)
6	Maximum Burst Current Draw *	240A(10s)	8.6C
7	Standard Charge Current	5.6A	0.2C
8	Recommended Charge Current	16A	0.57C
9	Maximum Charge Current	32A	1.2C
10	Minimum Safe Voltage	18.0V	3.0V/Cell
11	Fully charge voltage(FC)/Charge cut-off voltage	25.2V	4.20V/Cell
12	Balance Plug	7 pin JST-XH
13	Discharge Connector	QS8-S (XT90S adapter included)
14	Thermistor Plug	2 pin JST-XH (NTC,β=3435K,R25=10KΩ,±1%(at 25℃)
15	Physical (Maximum Size):
16	Diameter	98.5mm (MAX)
17	Cells Length	230mm (MAX)
18	Lead Length	85mm
19	Weight	3.23Kgs

1.1.Product Description:

The Lithium-ion Battery(22.2V,28Ah),P/N:ETBAT2303,model:BATTERY-6S-28AH-V3 is a high capacity customized battery pack,which is made from high quality 18650 lithium-ion cells Samsung 40T cells and designed to fit perfectly inside a 4‘‘ watertight enclosures. The battery pack is 6S 22.2V and with nominal high-capacity of 28Ah. The Lithium-ion Cells and the battery pack is comprised of have excellent working performance characteristics. The battery pack is CE approved,UN38.3 certified and with MSDS. Certificates can be provided per required.

2.Optional Li-ion Cell Types

Model	Nominal Voltage (V)	Nominal Capacity (mAh)	Working Temperature (℃)	Maximum Charge Voltage (V)	Discharge Cut-off Voltage (V)	Battery Weight (Approx.)	Measurement (Φ*H)
14500	3.7V	800mAh	-20℃~+60℃	4.2V	2.75V	18.0g	14x50mm
14650	3.7V	1100mAh	-20℃~+60℃	4.2V	2.75V	25.0g	14x65mm
18350	3.7V	900mAh	-20℃~+60℃	4.2V	2.75V	19.0g	18x35mm
18500	3.7V	1500mAh	-20℃~+60℃	4.2V	2.75V	33.0g	18x50mm
18650	3.7V	2000mAh	-40℃~+85℃	4.2V	2.75V	42.0g	18x65mm
18650	3.7V	2200mAh	-20℃~+60℃	4.2V	2.75V	43.0g	18x65mm
18650	3.7V	2500mAh	-20℃~+60℃	4.2V	2.75V	44.5g	18x65mm
18650	3.7V	2600mAh	-20℃~+60℃	4.2V	2.75V	45.8g	18x65mm
18650	3.7V	3000mAh	-20℃~+60℃	4.2V	2.75V	48.0g	18x65mm
21700	3.7V	4200mAh	-20℃~+60℃	4.2V	2.75V	67.0g	21x70mm
26650	3.7V	5000mAh	-20℃~+60℃	4.2V	2.75V	85.0g	26x65mm
32650	3.7V	6500mAh	-20℃~+60℃	4.2V	2.75V	132.0g	32x65mm

3.Feature And Application
√ High energy with high voltage
√ Green energy and pollution-free
√ Customize dimension according to your needs
√ Friendly environmentally
√ Wide operating temperature: -20℃ to +60℃,or -40℃~+85℃
√ Safety and reliable
√ Long cycle life of a Li-ion in application is 1,000+ times
√ No memory efficiency,discharge or charge at any time

Application :
use in subsea vehicles,power output for serious underwater ROVs,USVs and other vehicles

We have the above certification to help customer to win global market:
North America Certificate: UL
Europe Certificate: CE/ROHS/REACH
Asia & Australia Certificate: PSE/KC/CQC/BIS
Global Certificate: CB/IEC62133/UN38.3/MSDS
If you have any questions,please freely email us for helps.