Batteries for Tennant T15
Which battery does a Tennant T15 need?
Battery analysis for your Tennant T15
Quick answer You need an AGM battery of 230 Ah. Our recommendation: TROJAN 8D-AGM.
Prices and availability updated on 23/10/2026
Based on the batteries we found for your vehicle, our experts help you pick the right one.
📋 What we found
For your Tennant T15 we found 4 compatible batteries.
📏 Battery size
The list contains batteries in different sizes or capacities (Ah). In many cases both variants fit, but it's worth checking your compartment dimensions and the Ah of your original battery before buying. Choose the one with the same dimensions as your current battery: a bigger one may not fit the compartment or the hold-down. If several match your size, the higher capacity gives more headroom for cold starts.
⭐ Our recommendation
For your Tennant T15 we recommend the TROJAN 8D-AGM (AGM, 230 Ah). It also has the highest capacity (Ah) on the list — more autonomy to power consumers with the engine off and more reserve for prolonged loads.
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Verified selection
- Class: Floor sweeper batteries
- Brand: Tennant
- Model: T15
Start-Stop & high energy demand batteries
AGM or EFB battery for start-stop vehicles and for cars with high energy demand (many electrical consumers, frequent starts). More charge cycles, better charge recovery and longer service life.
Does your car have Start-Stop?
Start-Stop switches the engine off at traffic lights. If your car has it, it needs an AGM or EFB battery.
There are no batteries of that type for this engine. Try "Show all" or message us.
| Category | Make | Reference | Capacity | Dimensions | Technology | Price | |
|---|---|---|---|---|---|---|---|
| Start-Stop & high energy demand batteries | TROJAN | 8D-AGM | 230 Ah | 520×270×231 mm | AGM | €1,509.40 | More info |
Conventional Battery
This is a standard or conventional battery for vehicles without a start-stop system
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Traction battery Trojan L16H-AC 6V 435Ah
- 6 V
- 435 Ah
Dimensions 296×176×425 mm
- ✓ Highest Ah
Takes 6 units
€804.70
-
Traction battery Trojan L16P-AC 6V 420Ah
- 6 V
- 420 Ah
Dimensions 296×176×425 mm
Takes 6 units
€764.70
-
Solar battery Trojan 6V-GEL 6V 189Ah GEL
- 6 V
- 189 Ah
- GEL TROJAN 6V-GEL · 189 Ah
Dimensions 260×181×275 mm
Takes 6 units
€805.10
| Category | Make | Reference | Capacity | Dimensions | Technology | Price | |
|---|---|---|---|---|---|---|---|
| Conventional Battery | TROJAN | L16H-AC | 435 Ah | 296×176×425 mm | — | €804.70 | More info |
| Conventional Battery | TROJAN | L16P-AC | 420 Ah | 296×176×425 mm | — | €764.70 | More info |
| Conventional Battery | TROJAN | 6V-GEL | 189 Ah | 260×181×275 mm | GEL | €805.10 | More info |
Frequently asked questions
- The Tennant T15 uses the battery shown on this page. Check voltage, capacity and dimensions before ordering. If there is no published price, ask for a quote and we reply the same day.
- Yes, as long as it has the same voltage, fits in the battery compartment and the Tennant T15 charger is compatible. More capacity (Ah) means more run time; changing the voltage or battery type without adapting the charger can damage the equipment.
- Many machines run at 24, 36 or 48 V with several 6, 8 or 12 V batteries connected in series (voltages add up; the Ah capacity is that of one unit). The model page tells you how many units it takes. Always replace the whole set with identical batteries of the same age.
- Not advisable. A starter battery delivers a lot of current for a few seconds; a deep-cycle battery has thick plates built to be discharged to 50-80% and recharged every day. In traction, cleaning or mobility equipment a starter battery lasts very few cycles.
- Some references are not published in the shop: click "Request a quote" and we reply the same working day with price and lead time. Those with a price can be bought online and ship the same day if you order before 6:00 pm.
- ⚠ Then you need a battery designed for Start-Stop (EFB or AGM). We have hidden the conventional batteries from the list: fitting them in your car would ruin the battery within months and could damage the alternator. The batteries below are built for the frequent charge/discharge cycles of Start-Stop. 💡 We are showing the conventional batteries, which match your version. If you want a longer life, an EFB or AGM of the same size also fits: tap “Show all”. 💡 If in doubt, play it safe: buy a Start-Stop battery (EFB or AGM). It works in Start-Stop cars and non-Start-Stop cars alike, lasts longer and avoids any risk. You only pay a few euros more than a conventional one.