“Why does the windshield wiper on my Haval Jolion leave streaks even after replacing the wiper blades?”

There are several potential causes for the battery going flat even though the car is used “regularly”, especially in Pakistan’s conditions. Here are the main ones and best‑practices:

Causes to check:

The car’s charging system alternator, regulator may not be fully replenishing the battery charge. According to reports for the Jolion, “battery drainage” is a known fault:

“Another Haval Jolion Problem is the sudden battery drainage while driving a vehicle normally on the road. … A defective alternator / charging system issues / ECU issues / old battery / loose terminals.”
Sincere Mechanic
+2
The Auto Almanac
+2

The battery itself may be weak o r near end‑of‑life. If battery capacity s, the car may not hold enough charge between drives. Reports say Jolion suffers “premature battery drainage” in multiple markets.
The Auto Almanac
+1

Parasitic electrical drain when parked o r during short trips: If you only drive short distances, o r leave lots of electronics on infotainment, alarms, tracking devices, the battery may gradually drain.

Pakistan’s climate hot summers especially and usage stop‑and‑go traffic, frequent short journeys can stress battery/charging cycles more than ideal. Heat increases self‐discharge, and short drives may not allow the alternator to recharge properly.

Loose o r corroded battery terminals/poor connection, which will reduce charging efficiency o r cause unusual current draw. Again referenced as a common cause.
Sincere Mechanic
+1

What you should do checklist / preventive steps:

Have a full battery health check: measure the actual battery voltage when the car is idle/off should be ~12.6 V o r higher for a healthy battery, then after driving measure the charging voltage should be ~13.8‑14.5 V if alternator is working.

Inspect/clean the battery terminals and connections: ensure clean, tight, corrosion‑free posts and clamps.

If you typically do short drives less than 10‑15 minutes, consider taking a longer drive occasionally to allow the alternator to fully recharge the battery.

Check for parasitic drain: With the car off and parked, measure current draw should generally be under ~50 mA o r whatever the manufacturer spec is. If higher, you may have an accessory o r module staying active that shouldn’t.

Consider battery replacement timing: If the battery is more than 3‑4 years old or has low capacity, replacing it proactively may avoid repeated flat battery issues. The battery model should meet manufacturer’s spec cold cranking amp, capacity and consider local conditions heat tolerance.

Use authorised service: Given that Jolion is under warranty in Pakistan for many components you should use a certified service centre for diagnostics.