145G51 Battery — N150
The 145G51 (N150) is a commercial-grade heavy-duty JIS battery — built for medium-duty trucks, large buses, construction equipment, and marine applications. Thick positive plates (3.0+ mm), lead-antimony grids, and a deep sump design deliver extreme vibration resistance and sustained high-current capability that passenger car batteries cannot match.
Quick Reference
| Parameter | Specification |
|---|---|
| Model | 145G51 |
| Also Known As | N150 |
| Standard | JIS |
| Battery Type | Heavy Duty |
| Nominal Voltage | 12 V |
| Capacity (C20) | 120-135 Ah |
| CCA Rating | 800-900 A (SAE) |
| Dimensions (LxWxH) | 508 x 222 x 212-240 mm |
| Terminal Type | T1 large post |
| Polarity | Left (-), Right (+) — JIS type [0] |
| Hold-Down | B00 (top frame) |
| Approximate Weight | 30-38 kg |
| Chengguang SKU | CG-JIS-145G51 |
Specification Ranges
Values shown are typical ranges. Exact specifications vary by production batch. Contact Chengguang for your order's technical data sheet.
How to Identify This Battery
Massive case (508 x 222 mm). T1 large post terminals (O19.5mm positive, O17.9mm negative). Label shows '145G51' or 'N150'. The weight alone (30-38 kg) is the most obvious identifier — roughly double a passenger car battery.
Vehicle Applications
Medium-duty trucks (4-8L diesel), large buses, construction machinery, generators, marine starting. NOT for passenger vehicles.
Compatible Vehicles
| Isuzu | F-Series, Forward | | Hino | 300, 500 Series | | Fuso | Canter, Fighter | | UD Trucks | Croner, Quester | | Construction | Excavators, wheel loaders, bulldozers | | Marine | Diesel inboard engines, commercial vessels |
Fitment Verification
Vehicle fitment is a general guide based on market experience. Always verify your vehicle's battery tray dimensions, terminal position, and hold-down type before ordering.
Regional Markets
Commercial vehicle aftermarket — global. Africa (major), Middle East, Southeast Asia, Latin America. Wherever medium-duty trucks and buses operate.
Manufacturing at Chengguang
Heavy-duty dedicated line. Pb-Sb thick grids (3.0-3.5mm) for structural integrity under vibration. Deep sump design — extra electrolyte reservoir below plates for extended service intervals. Double-sealed cover with labyrinth venting. Reinforced COS straps and intercell welds. Output: 800-1,200 units/day.
Testing & Quality Control
100%: CCA (SAE J537 at -18degC, >800A), OCV, high-rate discharge, visual. Batch: C20, RC (200-250 min typical), severe vibration (5g RMS, 8 hours per SAE J537), thermal cycling (-40degC to +70degC), deep cycle endurance (80% DoD).
Related Battery Models
- 190H52/N200 — larger heavy duty (521 x 278 mm, 200Ah) for heavy trucks
- 105D31 — passenger vehicle battery (306 mm, 90Ah). Not a replacement
- DIN100/60038 — large but not heavy-duty design (different plate construction)
Equivalent Models & Cross-Reference
| Model | Standard | Relationship | Confidence |
|---|---|---|---|
| N150 | JIS | Alias / Same case | :material-check: High |
Equivalent Does Not Mean Identical
Different model designations may indicate different specifications. Cross-standard equivalents are dimensional approximations only.
OEM & Private Label Availability
This model is available for OEM manufacturing under your brand from Chengguang Power Tech:
- IATF 16949:2016 certified manufacturing in Jinzhou, Hebei, China
- Custom label, case color, terminal type, and retail packaging
- Full batch traceability — raw material lot to shipping container
- 100% pre-shipment CCA and capacity testing with CoA
- DG-compliant export packaging (UN 2794 / Class 8)
- Technical data sheet, MSDS, and Certificate of Analysis per shipment
Request OEM Quote }View OEM Process}
Frequently Asked Questions
145G51 vs 190H52: which do I need?
145G51 for medium trucks and buses (4-8L diesel). 190H52 for heavy trucks and equipment (>8L diesel). 190H52 is larger, heavier, and more powerful.
Is N150 the same as 145G51?
Yes. N150 is the Middle East/Africa designation. Same battery.
Can I use a 145G51 in a passenger car?
No. Too large (508 x 222 mm), too heavy (30+ kg), different terminal size. Passenger car trays cannot accommodate.
What is the service life?
2-4 years in commercial service. Vibration and deep cycling are primary wear factors. Regular electrolyte level checks extend life (Pb-Sb grids consume some water).
For 24V truck systems?
Use two 145G51 batteries in series. Ensure both batteries are same age and specification for balanced charging.
Last verified: 2026-08-11 | Source: Chengguang Power Tech Co., Ltd. | SKU: CG-JIS-145G51 | Manufactured in Jinzhou, Hebei, China
Author: Chengguang Power Tech Technical Team | Reviewed: IATF 16949 Quality Department | Technical Reference