CYLINDRICAL CELL · 3.65V 3500MAH LI-ION
EVE 18650 35V 3.65V 3500mAh Cylindrical Cell
Nominal voltage 3.65 V · Nominal capacity 3500 mAh · Cylindrical 18 × 65 mm format · High-energy density 18650 cell.
View SpecificationsINDUSTRY / 3C & COMMERCIAL ELECTRONICS / SURVEYING, NDT TESTING & DIGITAL RADIOS
Handheld Test Instruments, Surveying & Two-Way Radios: Compatible Voltage Platforms & Custom Options
GNSS RTK surveying rovers, optical fiber fusion splicers, ultrasonic NDT flaw detectors, portable spectrum analyzers, and DMR two-way radios demand long field runtime and accurate state-of-charge reporting. Review EVE 18650 33V/35V and EVE 21700 50E/58E high-capacity cylindrical cells and custom pack options.
- Application Scope
- RTK total stations, ultrasonic flaw detectors, fiber splicers, two-way radios
- Voltage Platform
- 7.4 V (2S), 10.8 V / 11.1 V (3S), and 14.4 V (4S) SMBus smart packs
- Cell Options
- EVE 18650 35V (3500mAh) & EVE 21700 58E (5700mAh)
COMPATIBLE BARE CELLS · SURVEYING, NDT TESTING & DIGITAL RADIOS
Compatible Voltage Platforms & Custom Options
CYLINDRICAL CELL · 3.6V 5700MAH LI-ION
EVE 21700 58E 3.6V 5700mAh Cylindrical Cell
Nominal voltage 3.6 V · Nominal capacity 5700 mAh · Cylindrical 21 × 70 mm format · Ultra-high-capacity 21700 cell.
View Specifications
CYLINDRICAL CELL · 3.6V 3200MAH LI-ION
EVE 18650 33V 3.6V 3200mAh Cylindrical Cell
Nominal voltage 3.6 V · Nominal capacity 3200 mAh · Cylindrical 18 × 65 mm format · High-capacity lithium-ion cell.
View Specifications
CYLINDRICAL CELL · 3.65V 5000MAH LI-ION
EVE 21700 50E 3.65V 5000mAh Cylindrical Cell
Nominal voltage 3.65 V · Nominal capacity 5000 mAh · Cylindrical 21 × 70 mm format · Energy-series 21700 cell.
View SpecificationsCUSTOM BATTERY PACK ENGINEERING (SURVEYING, NDT TESTING & DIGITAL RADIOS)
Need a Custom 7.4 V (2S) Pack for Handheld Test Instruments, Surveying & Two-Way Radios?
AntBattery currently supplies matched bare cells (EVE 18650 35V (3500mAh) & EVE 21700 58E (5700mAh)) and assembles custom 7.4 V (2S), 10.8 V / 11.1 V (3S), and 14.4 V (4S) SMBus smart packs series-parallel battery packs for RTK total stations, ultrasonic flaw detectors, fiber splicers, two-way radios with tailored L × W × H enclosures, BMS current ratings, and wire harnesses.
ENGINEERING VERIFICATION
Handheld Test Instruments, Surveying & Two-Way Radios Operating Conditions and Cell / Pack Sizing
Submit Compartment & Load SpecsParent & sibling categories in 3C & Commercial Electronics: Cash Counters & Currency Equipment, POS Terminals, Barcode Scanners & Handheld PDAs, Portable Speakers, Wearables & Smart Hardware, Tactical Flashlights, Mining Lamps & Work Lights. Related voltage catalog: 7.4V–14.8V Instrument Platforms.
Fiber Splicer Arc-Heating Surge vs RTK UHF Radio Duty
Optical fusion splicers draw sharp current pulses during electrode arc fusion and sleeve oven heating (typically 3S 11.1V or 4S 14.8V), whereas GNSS RTK rovers draw steady 2S 7.2V power across 10-hour survey days.
High-Energy 18650 (3500mAh) vs 21700 (5000–5700mAh) Cell Volume
Upgrading an instrument cassette from 18650 to EVE 21700 58E (5700 mAh) delivers 62% more energy per cell with only a 3 mm diameter and 5 mm length increase.
Low-Ripple Output for Sensitive RF & Ultrasonic Front-Ends
Spectrum analyzers, geophones, and ultrasonic NDT gauges require clean DC battery power with fuel-gauge I2C/SMBus reporting and zero switching noise.
Field-Swappable Hard-Case Cassettes & IP65 Gasket Seals
Surveying and pipeline NDT instruments use custom injection-molded or sealed aluminum battery cartridges that swap in seconds in rain or dust.
TECHNICAL REFERENCE
Handheld Test Instruments, Surveying & Two-Way Radios Battery Engineering FAQs
What cylindrical cells give the longest runtime in GNSS RTK surveying receivers?
2S1P or 2S2P packs built with EVE 18650 35V (3.65V 3500mAh) or EVE 21700 58E (3.6V 5700mAh) maximize Wh per gram for pole-top GNSS receivers where head weight affects surveyor fatigue.
What battery configuration is used in portable optical fiber fusion splicers?
Field fusion splicers typically use 3S2P (10.8V/11.1V 5200mAh–7000mAh) or 4S2P (14.4V/14.8V) 18650/21700 packs capable of completing 200 to 350 splice-and-heat cycles per charge.
Can custom instrument battery packs include state-of-charge LED bars and fuel gauge ICs?
Yes. Custom instrument packs can integrate 4-LED push-button capacity indicators and I2C/SMBus coulomb-counter fuel gauge ICs.
How can instrument OEMs order bare EVE 18650 35V or 21700 58E cells?
Select the cell model directly from the cards above or request a custom-assembled instrument pack via Custom Battery Packs.
CUSTOM ENGINEERING & QUOTATION
Handheld Test Instruments, Surveying & Two-Way Radios Battery Engineering Inquiry
Provide your test instrument or radio voltage (7.2V/10.8V/14.4V), target Wh/mAh capacity, fuel-gauge protocol, and cassette dimensions.
Discuss on WhatsApp info@antbattery.comRELATED INDUSTRY CATEGORIES
All Industries ↗ 3C & Commercial Electronics ↗ 7.4V–14.8V Instrument Platforms ↗ Custom OEM Battery Packs ↗