Why does my Dodge Ram 50 battery keep going dead?

Short answer: If your Ram 50 battery dies after a few days, something is draining it with the key off, or the battery or alternator is weak. Test the battery and charging first, then do a parasitic draw test: put a meter in line with the battery and pull fuses one at a time until the draw drops. That tells you which circuit to chase.

Symptom: The battery goes dead after the truck sits a few days, or the clutch feels wrong.

What to check first

1. Have the battery and alternator tested at a parts store.
2. Do a draw test with a multimeter between the negative battery post and cable.
3. Pull fuses one at a time until the reading drops.
4. Check the clutch cable and its firewall mount for damage.

Likely causes

1. Parasitic draw. A parasitic draw means something keeps using power with the truck off, such as a stuck relay, glovebox or dome light, or a bad radio.
2. Weak battery or charging system. An old battery or a weak alternator can't keep up on short trips.
3. Clutch cable out of adjustment or damaged. The Ram 50 uses a cable to work the clutch. If it's stretched, damaged or the firewall is bent, it acts too long.

What it usually costs

Owners didn't post prices.

Is it safe to keep driving?

A draining battery just leaves you stuck. A clutch that won't fully release makes shifting unsafe in traffic.

DIY or shop?

Draw tests and clutch cable adjustment are good DIY jobs.

Recalls, bulletins and complaints in plain words

• Recalls: NHTSA lists 1 recall(s) for the Dodge Ram 50 in these years, and none match this problem. Check your VIN at nhtsa.gov/recalls. If your car is part of a recall, the dealer fixes it for free.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 1 keyword-matched complaints for Dodge Ram 50 1987–1993 (of 29 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-29; keywords: battery, drain, start, electrical, stall) (NHTSA returned no data for 4 model-year queries). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In Did you post here about parasitic draw test.(1990 Dodge Ram 50) on Car Talk, a 1990 Ram 50 owner's battery drained over a few days and short trips until the truck wouldn't start. The owner planned a parasitic draw test, pulling fuses one at a time while watching a multimeter to find the circuit.
• In 1992 Dodge Ram 50 on Car Talk, a 1992 Ram 50 was rear-ended and pushed into another car, and afterward the clutch cable acted too long. The owner had added washers to space it out. A member said the cable setup tolerates position changes, so the wheelbase difference wasn't likely the cause, but the truck should be checked over after the crash.

Quick tip

Doing a draw test with fuses is the cheapest way to find a battery drain. It costs nothing but an hour.

Vehicle focus: Dodge Ram 50 compact pickup, 1987-1993 (built by Mitsubishi, same as the Mighty Max).

Safety / mechanic note

Clutch problems are a safety item. Verify with a mechanic.