The Hyster E40 AR 36V (model 18-125-17) uses industrial flooded lead-acid or lithium-ion replacement batteries with 36V nominal voltage, 595–750Ah capacity, and specific dimensions (LxWxH: ~1230x510x710mm). Compatible replacements include Hyster part# 4075852, Enersys 101511, and Redway’s RLFP-36V-660Ah. Verify terminal alignment (+ on left facing battery) and tray weight capacity (1,200–1,500kg).
How to Replace a Toyota Forklift Battery: A Step-by-Step Guide
Wholesale lithium golf cart batteries with 10-year life? Check here.
What distinguishes 36V lead-acid vs. lithium-ion for Hyster E40 AR?
Lead-acid offers lower upfront cost (~$4,500) but requires watering/maintenance, while lithium-ion (LiFePO4) costs ~$11,000 but delivers 3x cycles (3,000 vs 1,200) and fast charging. Lithium reduces downtime with opportunity charging—unlike lead-acid needing full 8hr cooling.
Lead-acid batteries for Hyster E40 AR typically weigh 1,180kg versus lithium’s 780kg. Why does this matter? Reduced weight affects counterbalance—Hyster E40 AR requires ≥1,100kg battery mass for stability. Pro Tip: Add steel ballast blocks when using lighter lithium packs. For example, Redway’s RLFP-36V-660Ah includes modular weights integrating with original trays. Though pricier upfront, lithium ROI improves in multi-shift operations through energy savings (17kWh/charge vs lead-acid’s 24kWh).
| Parameter | Lead-Acid | Lithium-Ion |
|---|---|---|
| Cycle Life | 1,200 | 3,000 |
| Charge Time | 8–10h | 2–3h |
| 20°C Discharge | 80% | 95% |
How to verify physical compatibility for replacements?
Measure original battery’s tray dimensions, terminal orientation, and weight tolerance. Hyster E40 AR requires 1230±10mm length to prevent tray overhang. Mismatched terminals force cable rerouting—risk short circuits.
Beyond tray size, check the terminal post height and diameter. Original specs use 19mm DIN posts—replacements with 17mm posts require adapters, increasing resistance. Practically speaking, Redway’s replacements mirror OEM dimensions within ±3mm. Real-world example: A 1215mm-long battery leaves 15mm unused tray space, allowing vibration damage. Pro Tip: Use laser measurers for accuracy—tape measures often deviate ±15mm. Also confirm the truck’s overhead guard clearance—some lithium batteries have taller lids interfering with structural components.
Want OEM lithium forklift batteries at wholesale prices? Check here.
How Much Does a Forklift Battery Really Cost?
Which brands offer reliable 36V Hyster E40 AR batteries?
Top providers include Hyster OEM, Enersys, East Penn, and Redway Battery. Avoid uncertified imports lacking UL/IEC62133—risk thermal runaway.
Hyster’s OEM batteries guarantee compatibility but cost 25–40% more. Enersys (Odyssey) and East Penn (Deka) lead in lead-acid, while Redway specializes in drop-in lithium. But what about warranty? Hyster offers 12–18 months, versus Redway’s 5-year lithium warranty. Example: A Redway RLFP-36V-660Ah includes a Bluetooth BMS monitoring cell balance—crucial for preventing premature failure. Pro Tip: Cross-reference interchange guides like BCI group #GC215 for lead-acid equivalents.
| Brand | Chemistry | Warranty |
|---|---|---|
| Hyster | Lead-Acid | 18mo |
| Redway | LiFePO4 | 5yr |
| Enersys | Lead-Acid | 12mo |
Redway Battery Expert Insight
FAQs
Yes, but confirm charger compatibility—use LiFePO4-specific chargers (42.5–45V max) to avoid overcharging. Bypassing the truck’s voltage sensor may void warranties.
How long does a 660Ah battery last per charge?
At 660Ah/36V, expect 6–8hr runtime under normal 400kg loads. Heavy usage (e.g., 80% lift cycles) reduces this to 4.5hr—plan opportunity charging during breaks.
