● OTG Support – Versatile Data Transfer and Peripheral Connectivity
● PTT Integration – Instant Communication for Immediate Response
● Fingerprint Recognition & NFC – Enhanced Security and Connectivity
● 10000mAh Battery – Up to 526 Hours of Standby for Extended Use
● Android 13.0 – Stable and Efficient Operation
Product Overview
battery life is not a specification item. It is a mission-critical requirement. The Uphone L653 is a long battery life 4G PoC radio engineered from the ground up for these exact scenarios. Its ultra-high-capacity battery delivers full-shift and multi-shift operation without recharging, paired with IP68 waterproof protection, AI-assisted noise cancellation, and unlimited-range Push-to-Talk over Cellular communication via 4G LTE. When the environment is extreme and downtime is unacceptable, the L653 is the device that stays operational.
Ultra-High Capacity Battery — Multi-Shift Without Recharging
The L653's defining feature is its ultra-high-capacity Li-ion battery, delivering full-operation runtime that covers multi-shift deployments on a single charge.
4G LTE Push-to-Talk over Cellular — Unlimited Range
The L653 operates as a full 4G PoC radio — routing voice over 4G LTE cellular networks (FDD-LTE and TDD-LTE full band coverage), Wi-Fi, and 3G fallback to ensure communication wherever cellular coverage exists.
AI Noise Cancellation — Clear Audio in Demanding Environments
The L653 integrates AI-based digital noise suppression on both transmission and reception channels.
GPS + GLONASS Multi-System Positioning
Dual-satellite positioning (GPS + GLONASS, with optional BDS) provides real-time location data for fleet management, lone worker monitoring, dispatch coordination, and asset tracking.
Flexible Charging — Cradle + Type-C
Despite its high-capacity battery, the L653 supports rapid recharge via both Type-C direct charging and an optional multi-unit charging cradle — enabling fleet-scale overnight charging with individual device tracking when shift-change charging is required.
Dual SIM — Network Resilience for Remote Operations
| Dimension | 173*80*18.2mm | WIFI | 2.4G/5G |
| Processor | MT6762 Octa-core 2.0GHz | Positioning System | GPS + GALILEO + GLONASS + BDS |
| OS | Android 13.0 | Network | GSM /WCDMA/LTE-FDD/LTE-TDD |
| Display | 6.56 inch HD+(1600*720) | Battery | 10000mAh |
| SIM Card | Dual Nano card | IP Rating | IP68 |
| Camera | Front5.0MP; Rear16.0MP+5.0MP(Wide Angle)+0.08MP | Other | Fingerprint recognition; PTT; OTG; NFC; TF Card up to 512GB |
| Memory | 6GB RAM + 128GB ROM |
Application
The Uphone L653 excels in environments requiring durability and long-lasting power, such as petrochemical plants, gas stations, Industrial inspection, store, and field inspections. It supports efficient digital workflows with its rugged design and advanced features for data capture, communication, and secure access.
24/7 Security Operations
The L653's extended battery eliminates this problem — devices issued at shift start remain operational through shift end without requiring mid-shift battery management. For estates, campuses, ports, airports, and large facilities running round-the-clock patrol operations, the L653's long battery life directly reduces the supervision overhead on device management and eliminates communication gaps caused by depleted radios.
Remote Construction & Infrastructure Projects
Remote construction sites — pipeline installation, power transmission, road construction, mining site setup — often lack reliable charging infrastructure. Generators are shared resources; designated charging stations may be kilometers from where work is active. The L653 addresses this by extending between-charge intervals to cover multi-day remote deployment cycles when operated on low-PTT standby profiles. For project managers responsible for site communication, a long battery life 4G PoC radio that requires daily charging rather than mid-shift charging significantly reduces logistical complexity in environments where everything is already logistically challenging.
Long-Haul Logistics & Fleet Operations
Long-haul truck drivers and freight fleet coordinators operating on cross-regional routes are away from charging infrastructure for extended periods. Standard PoC devices carried in vehicle cabs may be charged from vehicle adapters when engines are running — but a high-capacity battery eliminates even this dependency for route segments where vehicle charging is unavailable or inconvenient. Combined with the L653's GPS positioning, 4G connectivity, and fleet PoC platform compatibility, the device functions as a fully capable fleet communication and tracking terminal throughout multi-day freight movements.
Outdoor Events & Temporary Deployments
Large-scale outdoor events — concerts, sporting events, festivals, construction expos — require deployed security, operations, and logistics teams to carry PoC radios throughout multi-day event setups and operations without reliable access to permanent charging infrastructure. The L653's extended battery capacity supports full event-day communication from setup through breakdown without device charging requirements that compete for temporary power supply access.
Offshore & Extreme Environment Operations
Oil and gas platforms, offshore wind energy maintenance teams, and maritime logistics crews operate in environments where device charging requires planning and where IP68 protection against salt water, condensation, and humidity is a non-negotiable requirement. The L653's combination of IP68 protection and extended battery life is specifically suited to these environments — delivering the communication reliability and physical durability that remote maritime and offshore operations demand.
The Uphone L653 is engineered to empower professionals across diverse industries with cutting-edge technology, ensuring safety, efficiency, and accountability in various operations. Its robust design and advanced features make it an indispensable tool for the following sectors:
Designed for versatility, this device integrates seamlessly into workflows, delivering precision, durability, and intelligence to meet the demands of modern industrial and safety challenges.
Frequently Asked Questions
Q: How long does the L653 battery actually last in field conditions?
The L653 is engineered for multi-shift operation under standard 5-5-90 PTT duty cycle conditions (5% transmitting, 5% receiving, 90% standby). Exact runtime depends on usage intensity, network signal strength, screen-on time, and GPS activity. Contact our sales team for the confirmed mAh rating and runtime specification sheet for your specific deployment scenario.
Q: How does the L653 compare to the L408 and L502?
The L408 is a touchscreen PoC radio optimized for ease of use and compactness. The L502 is a versatile PoC radio with a 6000mAh battery and optional external accessories. The L653 is positioned for operations where battery longevity is the primary requirement — significantly extended runtime to support multi-shift, remote, or extreme field deployments where charging access is constrained. If battery life is your number one criterion, the L653 is the right choice.
Q: Does the L653 work with Zello?
Yes. As a GMS-certified Android device, the L653 runs Zello, Real-PTT, and other PoC applications available on Google Play or deployable as APKs. It integrates into any existing PoC platform deployment without platform migration.
Q: Is the L653 suitable for use in cold storage or extreme temperature environments?
Yes. The L653 is rated for operating temperatures from -20°C to +55°C, covering standard cold storage environments and high-temperature outdoor operations. The touchscreen supports gloved-hand operation for cold chain workers.
Q: What charging options are available for large fleet deployments?
The L653 supports Type-C direct charging for individual top-up and an optional multi-unit charging cradle for fleet-scale overnight charging. For teams managing 20+ devices, the cradle option eliminates individual cable management and enables streamlined shift-change charging protocols.
Q: Can the L653 maintain communication in areas with variable network coverage?
Dual SIM support allows insertion of SIMs from two different network operators. In areas where one carrier has weak signal, the device can fall back to the second SIM's network — maintaining cellular connectivity across remote and variable-coverage environments. Wi-Fi fallback provides additional connectivity in facility environments.
Q: What is the minimum order quantity and what OEM options are available?
MOQ varies by configuration and customization requirements. Contact our B2B sales team with your fleet requirements and customization specification for a formal quotation.

Customized Services
We offer comprehensive customization services to tailor the L653 to your specific operational needs and branding.
Hardware Customization
The rear nameplate can be customized
Software Customization
Customizable switch motion pictures and ringtones, as well as customized system firmware
Function Customization
Add specific functions, such as artificial intelligence recognition, etc. Support integration with mainstream PTT Apps and Platforms.
Procurement managers evaluating a long battery life PoC radio for fleet deployment face a consistent market gap: premium brand devices (Motorola, Hytera) deliver reliability but carry price points that limit fleet scale. Generic PoC devices carry low prices but come with no accountability on battery claims, no after-sales support, and no OEM capability.
Uphone sits in the credible middle ground — a direct manufacturer with 110+ national patents, full OEM/ODM programs, and a dedicated B2B team with enterprise fleet experience. The L653 battery specification is a genuine engineering priority, not a marketing claim, because we understand that field communication devices that don't last the shift create real operational risk for our customers' businesses.
For operations teams deploying 50, 100, or 500 devices into environments where battery failure means communication failure, working with a manufacturer who takes that requirement seriously is not optional.
Ready to evaluate the L653 for your fleet? Request a sample unit, request a bulk pricing quotation, or discuss OEM requirements — contact our B2B team via the enquiry form below.
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