ADD Battery 21700 5000mah https://www.yycdrones.ca/product-page/21700-5000mah-battery-for-tx16s-and-tx16s-mkii
 
Features
Improved internal circuitry and optimized power supply.
New charge circuitry with integrated reverse-polarity protection.
Optimized charge IC now allows up to 2.2A internal USB-C charge current.
Rear-mounted audio jack provided headphone output.
V4.0 Gimbal improved centering and temperature stability (Same circuitry as AG01).
Optional high/low rear grips are included for improved ergonomics.
Improved S1/S2 knobs with clear centre-detents.
Improved LS/RS Sliders with smoother feel and better centre-detents.
Redesigned battery cover for improved battery access.
Retooled body shell with improved fit and finish.
Trainer socket changed to standard TRS 3.5mm socket.
Rear DIY Socket added for personalized mods.
Improved internal plastics for better longevity.
Available ELRS and 4in1 versions.
Specification
Item: TX16S Mark II
Size: 287x129x184mm
Weight: 750g (without battery)
Transmission frequency: 2.400GHz-2.480GHz
Transmitter module: Option 1: Internal 4-in-1 multi-protocol module (CC2500 CYRF6936 A7105 NRF2401)； Option 2: Internal ELRS (SX1280)
Transmitting power: Internal 4-in-1 multi-protocol module : Max 100mw (protocol dependent); Internal ELRS : Max 250mw (transmitting power is adjustable)
SD card: 256MB by default, 8GB maximum
Antenna gain: 2db (transmit power adjustable)
Working current: 400mA
Working voltage: 6.6-8.4v DC
Remote control distance:> 2km @ 22dbm
Radio firmware: EdgeTX
Module Firmware: Multiprotocol- Module (4IN1) -OR- ExpressLRS (ELRS)
Channels: Up to 16 channels (depending on the receiver)
Display: 4.3-inch TFT full-colour touch display with a resolution of 480 * 272
Gimbal: Option 1: V4.0 Hall sensor with Aluminium fascia; Option 2: AG01 CNC Hall sensor
Module Bay: JR compatible module bay
Upgrade method: Supports USB-C online / SD card offline upgrade
Support EdgeTX and OpenTX
 
Accessories
AG01 Full CNC Hall Gimbal
Replacement HALL V4 Gimbal
21700 5000mAh Battery 
TX16S Radio Carry Case Large
TX16S Foam Box Zipper Cover
TX16S Replacement Switch Assemblies (SA+SB/SC+SD/SF+SE/SH+SG)
TX16S CNC V3 Upgrade Parts Set
Package Includes
1 * TX16S Mark II Radio Controller
1 * 18650 Tray
1 * USB-C Cable
1 * Screen Protector
1 pair of flat grips 
1 pair of raised grips (installed on radio by default)
1 * TX16S Key Chain
No battery - add separately https://www.yycdrones.ca/product-page/21700-5000mah-battery-for-tx16s-and-tx16s-mkii