Lead acid storage batteries manufacturing · Massachusetts

Boston Battery LLC

Milford, MA · ~112 workers · 2 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
13.4
Avg TCR
3.3
Industry avg
0
Fatalities
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The verdict

Boston Battery LLC runs at 406% of its industry's injury rate - far more dangerous than the typical Lead acid storage batteries manufacturing workplace, earning a grade F.

Boston Battery LLC: 13.4 TCR = 406% of Lead acid storage batteries manufacturing BLS 3.3 · 2y Form 300A (see methodology below)

Boston Battery LLC safety composite

Boston Battery LLC scores strongest on fatalities (safer than 51% of same-industry peers) and weakest on total case rate (tcr) (safer than 1%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

F

14/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 13.39 per 100 workers

Safer than 1% of industry peers

DART rate
F 9.38 per 100 workers

Safer than 2% of industry peers

Fatalities
D 0

Safer than 51% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

TCR Δ

−8.0

2022→2023

Boston Battery LLC injury rate improved

Boston Battery LLC's TCR fell 8.0 from 17.4 in 2022 to 9.4 in 2023. Peak filing year was 2022 at 17.4 TCR. In 2023, DART was 0.7× this establishment's average TCR (severity share of cases).

2022=17.4 · 2023=9.4

OSHA ITA Form 300A scorecard

Establishment book 335911 · Milford, MA ABOVE-IND · MID

Grade F · TCR 13.4 · 406% of ind

  • DART 9.4 DART
  • RANK #7/7
  • PHOTO EnerSys Advanced Sys…
  • BOOK 2y book
  • INJ 23 inj
  • SIZE ~112 FTE

Nearest TCR peer: EnerSys Advanced Systems, Inc. (0.1 TCR gap)

Read with this employer → · Industry book → · Massachusetts employers → · Look up another →

Boston Battery LLC in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows Boston Battery LLC averages 13.4 TCR (406% of the Lead acid storage batteries manufacturing BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

Boston Battery LLC TCR series: 2022=17.4 · 2023=9.4 · BLS 3.3

Where Boston Battery LLC falls in its industry

161 Lead acid storage batteries ma establishments

Safer than 1% of graded establishments in this industry, whose median TCR is 2.1.

More dangerous than peersSafer than peers

Narrower to Massachusetts alone (the establishments it most directly competes with for workers and contracts): ranked #7 safest of 7 Lead acid storage batteries ma employers in Massachusetts.

Boston Battery LLC (112 employees, TCR 13.4) among 29 same-industry peers, split at the industry median of 107 employees and a TCR of 2.1 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 02,0004,0006,0008,000 05101520 Average employees Total Case Rate Boston Battery LLC
Boston Battery LLC (112 employees, TCR 13.4) among 29 same-industry peers, split at the industry median of 107 employees and a TCR of 2.1

Boston Battery LLC has more employees than the Lead acid storage batteries manufacturin median and a higher injury rate than the industry's median TCR of 2.1. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2023 9.4 9.4 10 0 0
2022 17.4 17.4 13 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

335911 · MA · Milford

161 Lead acid storage batteries manufacturing employers nationwide with a credible TCR · 10,108 rated employers in Massachusetts with headcount on file · 71 employers in Milford, MA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR EnerSys Advanced Systems, Inc. 13.5 TCR
NAICS-TCR Interspace Battery GA Corporation 11.4 TCR
NAICS-TCR Exide Technologies 15.5 TCR
NAICS-TCR IBS of Greater Boston 10.7 TCR
STATE-SIZE Fuse Equipment 112 FTE
STATE-SIZE J.H. Maxymillian, Inc. 112 FTE
STATE-SIZE TK Elevator Westwood 112 FTE
STATE-SIZE Pavilion Floors 112 FTE
CITY-NEAR Waters- Milford 2,393 FTE
CITY-NEAR Waters Corporation Milford, MA and Field 2,379 FTE
CITY-NEAR MRMC 1,824 FTE
CITY-NEAR Consigli Construction Company, Inc. 1,686 FTE
NAT-TCR Quality Janitorial Group 13.4 TCR
NAT-TCR Commercial Truck & Trailer, Inc 13.4 TCR
NAT-TCR Encompass Health Rehabilitation Hospital of Richmond 13.4 TCR
NAT-TCR 6962-SWY-0025-0025-00783 13.4 TCR
NAT-SIZE Washington Mills - Niagara Falls, NY 112 FTE
NAT-SIZE Preceptor Home Health & Hospice 112 FTE
NAT-SIZE Roads & Transportation 112 FTE
NAT-SIZE Chatham #246 112 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2023, 2022. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.