36 Volt Forklift Batteries

36 Volt Forklift Batteries — Tubular Flooded Lead-Acid

ForeverPure Power 36-volt forklift batteries are designed for mid-size 4,000–6,000 lb counterbalance forklifts, reach trucks, and turret trucks. Tubular flooded lead-acid construction delivers 1,500+ cycles at 80% DoD with 5–7 years of typical 24/5 fleet duty.

Typical Applications

4-wheel sit-down counterbalance (4,000–6,000 lb)
Crown ESR / Raymond Reach-Fork
Toyota 8FBCU / Hyster E50XN
Turret trucks and order pickers

Available Capacity Range

510 to 1,275 Ah at 6-hour rate. ForeverPure Power stocks 19 36V SKUs:

18-85-13-a — 510 Ah @ 6 hr, 1336 lb, 15.5" × 38" × 22.63"
18-85-13-b — 510 Ah @ 6 hr, 1306 lb, 19" × 30.63" × 22.64"
18-85-15-a — 595 Ah @ 6 hr, 1758 lb, 18" × 38.38" × 23"
18-85-15-b — 595 Ah @ 6 hr, 1756 lb, 23.75" × 32.25" × 23"
18-125-11 — 625 Ah @ 6 hr, 1840 lb, 13.75" × 38.25" × 30.5"
18-85-17-a — 680 Ah @ 6 hr, 2036 lb, 20.25" × 38.38" × 23"
18-85-17-b — 680 Ah @ 6 hr, 2106 lb, 26" × 33.38" × 23"
18-125-13 — 750 Ah @ 6 hr, 2105 lb, 15.75" × 38" × 30.5"
18-85-19-a — 765 Ah @ 6 hr, 2249 lb, 22.75" × 38.63" × 23.38"
18-85-19-b — 765 Ah @ 6 hr, 2303 lb, 26" × 35.38" × 23.5"
18-100-17 — 800 Ah @ 6 hr, 2058 lb, 20.38" × 38.57" × 26.38"
18-85-21 — 850 Ah @ 6 hr, 2338 lb, 24.88" × 38.63" × 23"
18-125-15 — 875 Ah @ 6 hr, 2480 lb, 18.16" × 38.44" × 30.5"
18-85-23 — 935 Ah @ 6 hr, 2530 lb, 27.25" × 38.5" × 23"
18-125-17 — 1000 Ah @ 6 hr, 2784 lb, 20.25" × 38.38" × 30.5"
18-85-25 — 1020 Ah @ 6 hr, 2702 lb, 29.63" × 38.63" × 22.86"
18-85-27 — 1105 Ah @ 6 hr, 2998 lb, 31.88" × 38.63" × 22.88"
18-85-29-wc — 1190 Ah @ 6 hr, 3045 lb, 34.13" × 38.63" × 23.63"
18-85-31 — 1275 Ah @ 6 hr, 3210 lb, 36.25" × 38.75" × 23.25"

Charging

36V chargers: absorption 42.3–44.1 V, float 39.6–41.1 V, equalize 45.0 V (2.50 V/cell). Discharge cutoff 30.6 V (1.70 V/cell). 3-stage with monthly equalize required.

Construction & Standards

Tubular positive plates with lead-antimony alloy
Envelope separators (polyethylene)
Tank formation for uniform cell capacity
Hardigg jar with high impact resistance
Flip vent caps with electrolyte level indicator
Single-point watering compatible (Flow-Rite, Philadelphia Scientific)
1,500+ cycles @ 80% DoD per BCI BCIS-14

Shipping & Hazmat

All 36V flooded lead-acid forklift batteries ship as UN 2794, Hazard Class 8 (Corrosive), Packing Group III, NMFC 60680, Freight Class 70 via hazmat-certified LTL carrier. ForeverPure provides all required hazmat documentation.

Warranty & Support

1-Year Limited Manufacturer Warranty. Matched chargers, watering systems, and replacement-fit consultation included. Contact our battery specialists for fleet pricing, sizing help, or freight quotes.