The SAIC Motor family spans city runabouts to workhorse vans—think MG ZS/HS/3/5, Roewe sedans, and Maxus/LDV vans and pickups. Picking the right 12‑volt battery (or auxiliary 12‑volt on EVs) means reliable starts, fewer warning lights, and longer life for start‑stop systems. Below you’ll find fast picks by use case, model‑specific tips, a fitment cheat sheet, spec targets, and a DIY install/maintenance guide. When you’re ready to compare, jump to curated Amazon searches for DIN H5 (L2) AGM, DIN H6 (L3) AGM, JIS 55D23L EFB, and Group 51R AGM.
Table of Contents
- Quick Picks for SAIC Motor Owners (By Use Case)
- Top Battery Types for SAIC Motors (What to Choose & Why)
- SAIC Motor Model-Specific Buying Tips
- SAIC Motor Battery Fitment Cheat Sheet (Most-Common Sizes)
- Spec Targets: CCA, RC, and Warranty
- Best Car Battery Brands for SAIC Motor & Where-to-Buy
- SAIC Motor Car Battery Installation Guide (DIY or Shop)
- SAIC Motor Car Battery Maintenance & Longevity
- Contact SAIC Motor Customer Service & Support
- SAIC Motor Car Battery FAQs
Quick Picks for SAIC Motor Owners (By Use Case)
- Daily driver (MG 3, Roewe i5, Maxus G50) without start‑stop: Quality Flooded/Lead‑Acid or EFB with solid Reserve Capacity. Try JIS 55D23L options or DIN H5 (L2). ~$110–$220 (Flooded), $150–$260 (EFB)
- Start‑stop MG/Roewe (MG ZS/HS, Roewe RX series): EFB (good) or AGM (best). Do not downgrade from AGM/EFB to standard flooded. See H6 EFB or H6 AGM. ~$170–$360
- Electronics‑heavy & short trips (large SUVs, premium trims): AGM for better charge acceptance, deep‑cycle resilience, and vibration resistance. Browse AGM best sellers. ~$200–$380
- Commercial/van (Maxus/LDV T60, G10, V80, Deliver 9): High‑capacity DIN H7/H8 EFB or AGM. H7 AGM or H8 AGM. ~$220–$450
- Hot climate: Favor higher RC and heat‑tolerant construction (EFB/AGM). Compare EFB.
- Cold climate: Prioritize CCA; AGM often cranks stronger in the cold. High‑CCA AGM picks.
- Compact MGs with reversed terminals: Many trims use 51R or JIS reversed‑polarity sizes—verify before buying. Shop 51R AGM. ~$160–$290
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Top Battery Types for SAIC Motors (What to Choose & Why)
| Type | Best For | Pros | Trade‑offs | Typical Price | Shop |
|---|---|---|---|---|---|
| Flooded/Lead‑Acid | Older/basic trims without start‑stop | Lowest cost; widely available | Lower cycle life; sensitive to deep discharges | $100–$220 | DIN H5 |
| EFB (Enhanced Flooded) | Start‑stop MG/Roewe; city driving | Better cycle life & charge acceptance vs flooded | Costs more than flooded; still below AGM performance | $150–$300 | H6 EFB • 55D23L EFB |
| AGM (Absorbent Glass Mat) | Premium trims, cold climates, heavy accessories | High CCA, vibration‑resistant, deep‑cycle capable | Highest price; requires proper charging voltage | $200–$450 | H6 AGM • H7 AGM |
| Aux 12‑V for EV/HEV | MG4 EV, MG ZS EV, Roewe/Maxus EVs (runs ECUs & locks) | Small form factors; stable voltage for electronics | Still ages; replace on schedule to avoid HV system lockouts | $120–$260 | Aux 12‑V AGM |
SAIC Motor Model-Specific Buying Tips
- MG ZS / ZS EV: ICE trims often suit DIN H5/H6; start‑stop trims prefer EFB/AGM. ZS EV uses a small auxiliary 12‑V AGM—don’t ignore it. ~$150–$360. Shop H5 EFB.
- MG HS / HS PHEV: Typically DIN H6. PHEV benefits from AGM due to frequent engine restarts. ~$200–$400. Shop H6 AGM.
- MG 3 / MG 5 (ICE): Commonly JIS sizes like 55D23L or compact DIN. Verify polarity (some trims reverse). ~$120–$260. 55D23L picks.
- MG4 EV / MG ZS EV / Roewe Ei series: Auxiliary 12‑V AGM; check OE Ah rating and terminal orientation. ~$140–$260. Aux 12‑V choices.
- Roewe RX5/RX8 & i5/i6: Often DIN H6/H7; pick EFB/AGM for start‑stop. ~$170–$420. H7 EFB.
- Maxus/LDV T60, G10, D90, Deliver 9: Heavy‑duty DIN H7/H8 with high RC; AGM excels on rough roads and accessories. ~$220–$450. H8 AGM.
- Always confirm by VIN/registration and measuring the tray, height, and terminal layout. If OE was EFB/AGM, do not downgrade.
SAIC Motor Battery Fitment Cheat Sheet (Most-Common Sizes)
| Model | Years | Typical Size | Tech | Notes | Shop |
|---|---|---|---|---|---|
| MG ZS (ICE) | 2017–present | DIN H5/H6 | EFB/AGM | Start‑stop on many trims | H5 AGM |
| MG HS / HS PHEV | 2018–present | DIN H6 | AGM preferred | PHEV cycles often | H6 AGM |
| MG 3 | 2011–present | JIS 55D23L (varies) | Flooded/EFB | Check polarity & hold‑down | 55D23L |
| MG 5 (ICE) | 2012–present | JIS 55D23L or DIN compact | EFB | Some trims reversed terminals | 55D23L EFB |
| MG ZS EV / MG4 EV | 2019–present | Aux 12‑V (AGM) | AGM | Verify Ah and dimensions | Aux AGM |
| Roewe RX5 | 2016–present | DIN H6 | EFB/AGM | Start‑stop common | H6 EFB |
| Roewe RX8 | 2018–present | DIN H7 | AGM | Large SUV—higher RC | H7 AGM |
| Maxus/LDV T60 | 2016–present | DIN H7 | EFB/AGM | Work loads & accessories | H7 EFB |
| Maxus/LDV G10 | 2014–present | DIN H7/H8 | AGM | Vans need high RC | H8 AGM |
| Maxus Deliver 9 | 2019–present | DIN H8 | AGM | Heavy‑duty cycles | H8 AGM |
Spec Targets: CCA, RC, and Warranty
RC: Reserve Capacity
Tech: Flooded / EFB / AGM
- CCA: Meet or exceed OE CCA. Cold climates benefit from +50–100 CCA over the minimum.
- RC: Higher RC keeps lights/HVAC/audio alive in traffic or with engine off—great for rideshare and vans.
- Technology: If OE was EFB/AGM (start‑stop), don’t downgrade.
- Warranty: Target 36+ months free replacement (or regional equivalent) on AGM/EFB.
- Terminal orientation: Some compact MGs use reversed terminals (e.g., 51R). Double‑check before purchasing.
Best Car Battery Brands for SAIC Motor & Where‑to‑Buy
| Brand | Standout Lines | Strengths | Typical Warranty | Shop |
|---|---|---|---|---|
| Exide | EFB, AGM | Strong OE footprint; balanced pricing | 24–48 mo | Exide AGM |
| Varta | Blue/Silver Dynamic (EFB/AGM) | Excellent start‑stop performance | 24–48 mo | Varta AGM |
| Bosch | S4/S5 (EFB/AGM) | Reliable DIN sizes; wide availability | 24–48 mo | Bosch AGM |
| ACDelco | Gold/Professional AGM | Good for Wuling/GM‑joint vehicles | 24–42 mo | ACDelco AGM |
| Odyssey/Enersys | Extreme AGM | High CCA, robust for accessories | 36–48 mo | Odyssey AGM |
- Where to buy: Amazon, national parts chains, dealership parts counters, and reputable battery specialists.
- Pros of online: Easy comparison of CCA/RC, user reviews, doorstep delivery.
- Pros of local: Same‑day fitment testing, core return handled on the spot, old‑battery recycling.
- Tip: Bring your old battery for core credit and have your alternator output tested after installation.
How to Check Freshness & Authenticity
- Look for a date code (sticker/engraving). Prefer units manufactured within the last 3–6 months.
- Scan for tamper‑evident seals and intact vent plugs; avoid scuffed or re‑labeled cases.
- Measure open‑circuit voltage before install (AGM ≈ 12.7–12.9 V when full).
- Buy from authorized sellers; keep invoice/serial for warranty.
Car Battery Warranty Tips
- Clarify free‑replacement vs pro‑rated terms and labor coverage.
- Confirm required proof of maintenance/charging for start‑stop systems.
- Register the battery if your vehicle or brand recommends it (helps smart‑charging accuracy).
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SAIC Motor Car Battery Installation Guide (DIY or Shop)
- Save memory if needed: keep windows up, note radio codes. A memory saver helps.
- Park safe, engage parking brake, wear eye/hand protection.
- Locate the battery (engine bay or trunk/under‑seat on some vans/EVs). Photograph cable routing and tie‑downs.
- Disconnect negative (–) first, then positive (+). Remove brackets/hold‑downs.
- Lift the old battery straight up; avoid tilting. Clean tray and terminals; fit anti‑corrosion pads if desired.
- Place the new battery; confirm polarity and that case/height clear the hood/seat base.
- Reconnect positive (+) first, then negative (–). Torque clamps snug—not crushing.
- Reinstall tie‑downs; check there’s no movement. Start the vehicle and verify charging voltage (≈ 13.8–14.7 V).
- For start‑stop/AGM/EFB cars, use a scan tool to register the new battery where applicable.
- Recycle the old battery responsibly; claim your core refund.
SAIC Motor Car Battery Maintenance & Longevity
- Use a smart charger compatible with EFB/AGM for top‑offs during infrequent use: AGM chargers.
- Keep terminals tight/clean; inspect for parasitic draws if the car sits for weeks.
- Avoid repeated deep discharges; start‑stop cars benefit from periodic long drives to 100% SOC.
- In hot regions, shade parking and hood insulation help reduce heat soak.
- For vans with accessories (fridges, winches), consider dual‑battery or DC‑DC chargers.
Signs You Need a New Battery
- Slow cranking, dim cluster at start, or intermittent start‑stop operation.
- Voltage < 12.4 V after sitting 12+ hours (healthy AGM ≈ 12.7–12.9 V).
- Swollen case, leaks, rotten‑egg smell, or repeated jump‑starts.
- Battery age 3–5 years (AGM/EFB) in hot climates; 4–6 years in mild climates.
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Contact SAIC Motor Customer Service & Support
- Website: saicmotor.com
- Dealer/Service Locator: Check the brand site for your market.
- MG Motor Global: mgmotor.com
- SAIC Maxus/LDV: saicmaxus.com
- Roewe: Roewe overview
- Owner Manuals: Consult the model page for downloadable PDFs.
SAIC Motor Car Battery FAQs
How long should a SAIC Motor car battery last?
Most EFB/AGM batteries in modern SAIC vehicles last about 4–6 years in moderate climates. Short trips, extreme heat/cold, and heavy accessory use can reduce life to ~3–4 years.
How much is a SAIC Motor car battery?
Typical pricing is ~$140–$230 for quality EFB (common in start‑stop models) and ~$200–$380 for AGM, excluding installation or battery coding where applicable.
Do MG/Maxus/Roewe models with start‑stop need EFB or AGM?
Yes. Vehicles equipped with start‑stop or energy‑recovery systems should use EFB (minimum) or AGM (best). Avoid downgrading to standard flooded batteries.
What battery sizes are most common in SAIC cars?
Many SAIC passenger models use European DIN sizes like LN2 (L2/H5), LN3 (L3/H6), or LN4 (L4/H7). Always confirm by VIN or owner’s manual.
Do I need to code/register a new battery?
Some models with a Battery Management System (BMS) benefit from battery registration or adaptation so the ECU charges the new unit correctly. Dealers or capable scan tools can perform this.
My start‑stop stopped working after replacement—why?
The battery may be undercharged, incorrect type, or not coded. Fully charge the battery, verify connections/IBS sensor, and perform BMS reset/coding.
Can I upgrade from EFB to AGM?
Yes. Upgrading from EFB to AGM is generally fine and often improves cycle life and charge acceptance. Do not downgrade from AGM to flooded/EFB.
What CCA (Cold Cranking Amps) should I target?
Match or exceed the OE rating on the original battery label or manual. In cold climates, +50–100 CCA above the minimum can aid reliable starts.
How do I keep my SAIC battery healthy if I drive infrequently?
Use an AGM‑safe smart maintainer, disable parasitic accessories when parked, and take a 20–30 minute drive monthly to allow the alternator to replenish charge.
Are warranty terms different for start‑stop batteries?
Often yes. Check that the warranty explicitly covers start‑stop use and note the free‑replacement vs. prorated periods; keep the receipt and record the install date.
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ACDelco Gold 94RAGM (88864542) 36 Month Warranty AGM BCI Group 94R Battery