Sentry Models
Made in USA, 10+ models cover all Telecom, UPS and utility DC applications, for any scale. UL certified and CE marking.
- All models (except NB4/8) have a 4-pin port for HMI for service/calibration or permanent onsite display.
- Centralized dashboard Master-800 can manage hundreds of remote units efficiently.
Legacy software Battery Analyzer PC software is supplied and compatible with all models. - NERC Auto-fill Excel software is available for customizing battery service reporting for NERC compliance.
- MyBattery Platform™ and Geo-map reporting are recommended for large scale Telecom/Utility applications.
SOH/SOC/Runtime algorithm has been implemented to all Telecom 24V/48V models.
Model | Photo | Max Batt# per Unit | Applications |
Sentry-NB4 | ![]() |
4 x 12V4 x 6V
2 x 12V |
Telecom cell sites, micro/5G sites
Cable/Broadband cabinets Traffic light backup power Solar powered radio stations |
Sentry-NB8 | ![]() |
4 x 12V, 1 or 2 strings4 x 6V, 1 or 2 strings
2 x 12V, 1 or 2 strings |
Telecom cell sites, micro/5G sites
Cable/Broadband cabinets Traffic light backup power Solar powered radio stations |
Sentry-S6 | ![]() |
4 x 12V, 3 to 6 strings | Telecom sites, -48V |
Sentry-S15 | ![]() |
2 x 12V, 3 to 15 strings | Telecom sites, 24V |
Sentry-1202 | ![]() |
12 x 2V | Telecom sites, 24V
NiCad 9 x 1.2V (12V system) |
Sentry-2402 | ![]() |
24 x 2V | Telecom plants and sites, -48V |
Sentry-2412 | ![]() |
24 x 12V
10 x 12V 20 x 6V |
Medium-size UPS (100 to 350VDC)
Utility (NERC) switchgear 120/240VDC NiCad 120/240V multi-cell monitoring High Voltage Bank (Two units for 48 x 12V) |
Sentry-4412HV | ![]() |
44 x 12V
40 x 12V 32 x 16V |
Large UPS (High Ripple/Noise online UPS) [Pre-configured for popular 40x12V] |
Sentry-6002NEMA | ![]() |
60 x 2V per unit
100 x 1.2V NiCad |
NERC Compliance
Utility substations and generation plants with 120VDC or 240VDC bank NiCad 110/220VDC (up to 100 x 1.2V per unit) Large UPS with 240 x 2V |
Selection Chart
Selection Chart Printout (pdf)
Backup / Stationary Battery Applications
Voltage | Battery Configuration | Sentry Model | Notes |
24V | 12x2V | Sentry-1202 | Telecom SOH, SOC, Runtime |
2 x 12V, 1 string | Sentry-NB4 | Telecom SOH, SOC, Runtime | |
2 x 12V, 1 or 2 strings | Sentry-NB8 | Telecom SOH, SOC, Runtime | |
Genset 2 x 12V 1 or 2 strings |
Sentry-GenPro | Cranking capacity CCA evaluation | |
2 x 12V, 3 to 15 strings | Sentry-0212S15 | Telecom SOH, SOC, Runtime | |
-48V | 24 x 2V | Sentry-2402W2 | Telecom SOH, SOC, Runtime |
4 x 12V, 1 string | Sentry-NB4 | Telecom SOH, SOC, Runtime | |
4 x 12V, 1 or 2 strings | Sentry-NB8 | Telecom SOH, SOC, Runtime | |
4 x 12V, 3 to 6 strings | Sentry-0412S6 | Telecom SOH, SOC, Runtime | |
120V | 60 x 2V | Sentry-6002NEMA-120 | NERC Compliance BMS and Software |
90 x 1.2V NiCad | Sentry-6002NC-120 | Up to 100 x 1.2V per unit
Or Sentry-2412-120 for every 4-cell |
|
30 x 4V | Sentry-6004NEMA-120 | Modified model for 30 x 4V. | |
20 x 6V | Sentry-2412-120 | Set to 20 channels with HMI | |
10 x 12V | Sentry-2412-120 | Set to 10 channels with HMI | |
240V | 120 x 2V | Sentry-6002NEMA-120 x 2 units
Sentry-6004NEMA-240 (every 2-cell) |
NERC Compliance BMS and Software |
180 x 1.2V NiCad | Sentry-6002NC-120 x 2 units
Sentry-6002NC-240 (every 2-cell) |
Or Sentry-2412 for every 8-cell | |
20 x 12V | Sentry-2412 | Set to 20 channels with HMI | |
288V | 24 x 12V | Sentry-2412 | Default for 24 x 12V |
384V | 32 x 12V | Sentry-4412HV | Set to 32 channels with HMI |
480V | 40 x 12V | Sentry-4412HV | Including less than 40 x 12V and 30 x 16V |
528V | 44 x 12V | Sentry-4412HV | Including 41, 42, 43 x 12V and 32 x 16V |
576V | 48 x 12V | Sentry-2412 x 2 units | Unit A (Ethernet) + B (Serial) |
Solar or Cycling Applications
Voltage | Battery Configuration | Sentry Model | Notes |
24V | 12 x 2V | Sentry-24C | Individual cell performance evaluation |
2 x 12V, 1 string | Sentry-NB4 | Software setting for Cycling mode | |
2 x 12V, 1 or 2 strings | Sentry-NB8 | Software setting for 1 or 2 strings | |
2 x 12V, 3 to 15 strings | Sentry-0212S15C | Order with “C” for Cycling | |
-48V | 24 x 2V | Sentry-24C | Individual cell performance evaluation. NEMA enclosure for installation in wet-cell battery room. |
4 x 12V, 1 string | Sentry-NB4 | Set to Cycling mode | |
4 x 12V, 1 or 2 strings | Sentry-NB8 | Set to Cycling mode | |
4 x 12V, 3 to 6 strings | Sentry-0412S6C | Order with “C” for Cycling | |
120/240V
480/600V |
flexible battery configuration | Combinations | Contact BatteryDAQ for solutions [Models for lead acid cannot be used for lithium-ion batteries] |
Thermal Runaway Prevention
Battery Bank Voltage | 24/36/48V (18 to 60V) | 120/240/384/480/540V (100 to 600V) |
Model | Sentry-FT (Telecom Version) | Sentry-FTHV (High Voltage Version) |