Mercedes-Benz EQB 300 4MATIC (2022-2023) — Road Trip Charging Cost & Stops

What it actually costs to drive the Mercedes-Benz EQB 300 4MATIC long-distance: a 10-80% fast charge moves 46.6 kWh, buys about 170 miles, takes upwards of 33 min on a stall that can deliver its full 100 kW, and costs anywhere from $9.31 to $27.46 depending on which network you pull into. Plan a real route with this car to see the cheapest stops along your actual highway.

Mercedes-Benz EQB 300 4MATIC (2022-2023) charging specs

66.5 kWh

Usable battery

243 mi

EPA range

100 kW

Peak DC charge rate

3.65 mi/kWh

Efficiency

WattWay treats 66.5 kWh as the usable pack — the energy you can actually spend — and derives 3.65 mi/kWh from the EPA range against it. Profiles are split by spec generation, so this entry covers only the 2022-2023 model years, where the battery, range and charge rate are constant. Other model years of the EQB 300 4MATIC are listed separately on the all-EVs page.

What a charge costs on each network

A 10-80% session on this car moves 46.6 kWh. Below is what that same energy costs on every network WattWay prices, cheapest first, using its 2026 reference rates.

Mercedes-Benz EQB 300 4MATIC (2022-2023) charging cost by network
NetworkRate10-80% chargePer 100 mi
OUC$0.20/kWh$9.31$5.48
Tacoma Power$0.21/kWh$9.78$5.75
Seattle City Light$0.32/kWh$14.90$8.77
Francis Energy$0.39/kWh$18.15$10.68
Ionna$0.39/kWh$18.15$10.68
Buc-ee's$0.40/kWh$18.62$10.96
Tesla$0.40/kWh$18.62$10.96
Rivian$0.44/kWh$20.48$12.05
Walmart$0.47/kWh$21.88$12.88
ChargePoint$0.48/kWh$22.34$13.15
Volta$0.49/kWh$22.81$13.42
Shell Recharge$0.52/kWh$24.21$14.25
bp pulse$0.55/kWh$25.60$15.07
EVgo$0.55/kWh$25.60$15.07
Electrify America$0.56/kWh$26.07$15.34
Blink$0.59/kWh$27.46$16.16

The spread is the whole point: the same 46.6 kWh costs $9.31 on OUC and $27.46 on Blink — a difference of $18.15 for identical electricity. Over the 5 stops a 1,000-mile trip needs, picking well is worth about $88.69. Municipal and utility-run networks are cheapest but exist only in a few metros, so a realistic plan mixes them with whatever is actually on your route.

How long a Mercedes-Benz EQB 300 4MATIC takes to charge

Charge time is set by the slower of two things: the car's 100 kW ceiling and the stall's output. A 100 kW car gains nothing from a 350 kW stall beyond 100 kW, and a 50 kW stall throttles every car on the lot. The power column is the average the model assumes across the whole window — 85% of whichever limit binds — not the peak either side can hit, which is why the times below follow from it directly.

Mercedes-Benz EQB 300 4MATIC (2022-2023) 10-80% charge time by stall power
Stall powerModeled average power10-80% timeMiles per minute
50 kW43 kW1 hr 6 min2.6 mi/min
150 kW85 kW (car-limited)33 min5.2 mi/min
250 kW85 kW (car-limited)33 min5.2 mi/min
350 kW85 kW (car-limited)33 min5.2 mi/min

Miles per minute is the figure to compare across cars: it folds charge rate and efficiency together, so a big efficient pack at 150 kW can beat a thirsty one at 250 kW. Read these as a best case. They assume the car averages about 85% of its nameplate power for the whole 10-80% window, on a warm battery, at a stall running at full output. Real sessions are commonly 1.5-2× longer: cars with steep charge curves fall well below their peak long before 80%, a cold pack can halve the rate if you haven't preconditioned, and shared or derated stalls are routine. Use these to compare cars against each other, not to schedule your arrival.

Stops and cost by trip length

Leaving at 80% and arriving on the 10% reserve, each charge buys about 170 miles in this car. Cost columns show the cheapest and most expensive networks as a realistic range.

Mercedes-Benz EQB 300 4MATIC (2022-2023) charging stops and energy cost by trip distance
TripCharging stopsTime charging (best case)Charging bought en route
250 mi115 min$4.39 $12.95
500 mi21 hr 4 min$18.09 $53.36
750 mi41 hr 52 min$31.79 $93.77
1,000 mi52 hr 41 min$45.48 $134.18

Charging time is computed from the energy actually bought, not from whole sessions — the last stop is nearly always a partial top-up, so counting it as a full 10-80% charge would overstate the total. The cost column is likewise what you buy at chargers: the first 170 miles run on the charge you left home with, so a trip shorter than that shows nothing bought en route. This is also the idealized version — evenly spaced chargers, every one working, no detours. A real route has gaps, and the charger 40 miles ahead may be cheaper than the one you can just barely reach. Run your actual route through WattWay to get stops placed against real charger locations and prices.

Do charging memberships pay off for this car?

Every subscription is the same bet: a fixed monthly fee against a per-kWh discount. For the EQB 300 4MATIC, here is how many 10-80% sessions per month it takes to break even.

Charging membership break-even for the Mercedes-Benz EQB 300 4MATIC (2022-2023)
PlanMonthly feeSaved per chargeBreak-even
Tesla Supercharging Membership$12.99$4.663 charges/month
Shell Recharge Plus$4.99$3.262 charges/month
EVgo Plus$6.99$4.662 charges/month
Electrify America Pass+$4.00$4.661 charge/month

Break-even counts assume you charge on that network exclusively, which nobody does. Treat them as a floor: if a road trip alone clears the break-even, the plan is worth buying for that month. WattWay applies whichever memberships you select when it prices a route.

EVs with similar range

Mercedes-Benz EQB 300 4MATIC (2022-2023) charging questions

How much does it cost to fast-charge a Mercedes-Benz EQB 300 4MATIC (2022-2023)?
A 10-80% DC fast charge moves about 46.6 kWh into the 66.5 kWh pack. At OUC's $0.20/kWh that is about $9.31; at Blink's $0.59/kWh it is about $27.46. Which network you stop at therefore changes the price of the same electricity by roughly $18.15 per stop.
How long does a Mercedes-Benz EQB 300 4MATIC (2022-2023) take to charge on a road trip?
From about 33 min for 10-80% on a stall that can deliver the car's full 100 kW with a warm battery — that is the best case, and real sessions are commonly half again to twice as long once the charge curve tapers, the pack is cold, or the stall is shared. Charging past 80% is slower still, which is why the cheapest plan is usually more short stops rather than fewer long ones.
How far can a Mercedes-Benz EQB 300 4MATIC (2022-2023) go between charging stops?
Roughly 170 miles of highway driving per 10-80% charge, from 243 miles of EPA range and 3.65 mi/kWh. Cold weather, sustained high speed, headwinds, elevation gain and a loaded vehicle all cut that figure, sometimes by 30% or more.
How many charging stops does a Mercedes-Benz EQB 300 4MATIC (2022-2023) need on a 500-mile trip?
About 2 DC fast-charge stops, assuming you leave at 80% and arrive on the 10% reserve. The charging you buy on the way costs roughly $18.09 on OUC and $53.36 on Blink. That excludes the first 170 miles, which come out of the charge you left home with at a residential rate.

Plan a real trip in your EQB 300 4MATIC

The tables above assume an average network on an idealized route. WattWay's planner uses your actual origin and destination, real charger locations and prices along that highway, your memberships, and this car's battery, efficiency and peak charge rate to pick the cheapest workable set of stops. (It approximates the charge curve from that peak rate — it does not carry a measured per-vehicle curve.)

⚡ Plan a trip — free, no sign-up