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Fitment for your cart

Lithium kits that fit the Star EV Sirius / Capella 2017 and newer (lead-acid)

1 kit is confirmed by their brand for this cart and 16 more fit by size (they need a hold-down). 10 48V kits are too big for this bay or ruled out by their brand — we list them below with the reason. Every verdict shows how we reached it and links to its source. Checked October 25, 2026.

Your cart's details
Voltage
48V
Factory batteries
Six 8V or eight 6V lead-acid batteries (Star lists both)
Charging
No OBC documented — on-board 48V 18 A charger with remote LED
Charge port
Star EV DC charger receptacle (same part for Sirius and Capella)
  • Four- and six-seat models (CP-4, CP-6 and up) have a 450 A controller instead of 350 A — check the pack's current rating.
  • Star's parts catalog lists a separate "charger safety switch" for the Sirius: keep it wired when you change the charger.
  • Allied's Star EV kit uses several smaller batteries, "designed to be the same size as traditional lead-acid batteries", wired in parallel, with a charger "w/ STAR adapter".
  • Sources disagree: Battery count differs between listings (eight Trojan T-105 on a 2019 Sirius 2+2 Lifted, six 8V on a 2020 one). Capella start year not confirmed (dealer pages from 2020; Fleet Lithium lists 2023+).

Our three picks

Best kits for the Star EV Sirius / Capella

We may earn a commission when you buy through our links. Rankings never change with commissions. How we make money

Best overall
Epoch Batteries 48V 105Ah MINI kit (Club Car DS)

Epoch Batteries48V 105Ah MINI kit (Club Car DS)

Fits — brand lists this cart

The highest score among kits the brand lists for this cart.

$2,29988/100
Check price on official site →

Before you buy

Converting the Star EV Sirius / Capella (2017 and newer (lead-acid)): what's different

Star EV's Sirius (from 2017) and Capella are personal carts with AC drives and an on-board charger. Two things vary by model: the battery set (six 8V or eight 6V) and the controller (350A on two-seaters, 450A on four- and six-seaters).

How to tell it's this one

  • Six 8-volt or eight 6-volt batteries (Star lists both).
  • Sirius from 2017; Capella later.
  • Star EV DC charge receptacle and an on-board 48V 18A charger.

The battery bay

No bay measurement is published. Fleet Lithium sells Sirius kits with its 14.3 × 12.24 in and 22 × 12 in packs, and Epoch's kit finder recommends its 15.8 × 11.1 in MINI kit for the Sirius.

Controller and charging

  • Curtis AC controller: 350A (CP-2, 2+2) or 450A (CP-4 and up) — choose 200A continuous or more, 250A+ for the bigger models.
  • Star's parts catalog lists a charger safety switch on the Sirius: keep it wired when the charger changes.

What owners get wrong

  • Count the batteries before ordering: Star built both layouts.
  • Ask the brand for the Star charge-port adapter.
  • Lifted Sirius models pull more current — size the pack for the tires you run.

Sources: Star EV parts catalog (Buggies Unlimited) · Fleet Lithium Sirius kit · Epoch kit finder

Every kit, checked against your cart

All 18 kits, best fit first

“Brand lists this cart”: the brand's own finder, chart or product page names it. “Fits by size”: the pack is no larger than one documented to fit this cart (or than the measured bay) and no taller than the stock batteries. How we decide.

  1. Epoch Batteries 48V 105Ah MINI kit (Club Car DS)

    Fits — brand lists this cart Epoch's kit finder recommends the MINI kit ("Other" configuration) for the Star EV Sirius. Source

    Epoch Batteries 48V 105Ah MINI kit (Club Car DS): 5.4 kWh · 200 A · 11 years* warranty

    88 $2,299 Official site →

  2. Vatrer 48V 150Ah high-capacity kit

    Fits by size — add a hold-down At 22" × 12.1" × 11", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. Vatrer doesn't list this cart, so plan a hold-down bracket. Source

    Vatrer 48V 150Ah high-capacity kit: 7.7 kWh · 200 A · 10 years warranty

    88 $2,100 Official site →

  3. Vatrer 48V 105Ah Mini kit

    Fits by size — add a hold-down At 13.2" × 12.2" × 10", it is no larger in footprint than the Fleet Lithium 105Ah Star EV Sirius pack (14.3" × 12.24" × 10.94"), documented to fit this cart, and no taller than the stock batteries. Vatrer doesn't list this cart, so plan a hold-down bracket. Source

    Vatrer 48V 105Ah Mini kit: 5.4 kWh · 200 A · 10 years warranty

    83 $1,580 Official site →

  4. Cloudenergy 48V 105Ah kit (250A)

    Fits by size — add a hold-down At 20.6" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. Cloudenergy doesn't list this cart, so plan a hold-down bracket. Source

    Cloudenergy 48V 105Ah kit (250A): 5.4 kWh · 250 A · 5 years warranty

    75 See price on Amazon Amazon →

  5. WattCycle V2 48V 105Ah 250A kit

    Fits by size — add a hold-down At 20.5" × 9.4" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. WattCycle doesn't list this cart, so plan a hold-down bracket. Source

    WattCycle V2 48V 105Ah 250A kit: 5.4 kWh · 250 A · 5 years, 7 with registration warranty

    75 $1,650 Official site →

  6. Dakota Lithium 48V 105Ah Dakota Tough

    Fits by size — add a hold-down At 20.5" × 10.8" × 9.6", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. Dakota Lithium doesn't list this cart, so plan a hold-down bracket. Source

    Dakota Lithium 48V 105Ah Dakota Tough: 5.4 kWh · 200 A · 11 years warranty · battery only

    73 $2,699 Official site →

  7. DC House 48V 100Ah metal case + charger

    Fits by size — add a hold-down At 20.3" × 11.1" × 9.6", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. DC House doesn't list this cart, so plan a hold-down bracket. Source

    DC House 48V 100Ah metal case + charger: 5.1 kWh · 200 A · 5 years warranty

    70 $880 Official site → Amazon

  8. DC House SENTRY G100 48V 100Ah (UL 2580) + charger

    Fits by size — add a hold-down At 20.5" × 11.9" × 9.8", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. DC House doesn't list this cart, so plan a hold-down bracket. Source

    DC House SENTRY G100 48V 100Ah (UL 2580) + charger: 5.1 kWh · 200 A · 5 years warranty

    70 $1,200 Official site →

  9. OGRPHY 48V 100Ah kit

    Fits by size — add a hold-down At 20.4" × 10.6" × 8.6", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. OGRPHY doesn't list this cart, so plan a hold-down bracket. Source

    OGRPHY 48V 100Ah kit: 5.1 kWh · 200 A · 5 years warranty

    66 See price on Amazon Amazon →

  10. LiTime 48V 100Ah GC smart kit

    Fits by size — add a hold-down At 20.5" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. LiTime doesn't list this cart, so plan a hold-down bracket. Source Power: the stock controller can draw up to 350A; this pack is rated 100A continuous, so expect it to cut out on steep hills or with a heavy load.

    LiTime 48V 100Ah GC smart kit: 5.1 kWh · 100 A · 5 years warranty

    58 $1,282 Official site → Amazon

  11. Redodo 48V 100Ah Bluetooth conversion kit

    Fits by size — add a hold-down At 20.5" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. Redodo doesn't list this cart, so plan a hold-down bracket. Source Power: the stock controller can draw up to 350A; this pack is rated 100A continuous, so expect it to cut out on steep hills or with a heavy load.

    Redodo 48V 100Ah Bluetooth conversion kit: 5.1 kWh · 100 A · 5 years warranty

    58 $1,150 Official site → Amazon

  12. Power Queen 48V 100Ah GC8 + charger + monitor

    Fits by size — add a hold-down At 20.5" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. Power Queen doesn't list this cart, so plan a hold-down bracket. Source Power: the stock controller can draw up to 350A; this pack is rated 100A continuous, so expect it to cut out on steep hills or with a heavy load.

    Power Queen 48V 100Ah GC8 + charger + monitor: 5.1 kWh · 100 A · 5 years warranty

    58 $1,150 Official site →

  13. CHINS 48V 100Ah kit

    Fits by size — add a hold-down At 20.5" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. CHINS doesn't list this cart, so plan a hold-down bracket. Source

    CHINS 48V 100Ah kit: 5.1 kWh · 200 A · 1 year warranty

    58 See price on Amazon Amazon →

  14. LiTime 48V 60Ah battery

    Fits by size — add a hold-down At 20.6" × 9.3" × 8.6", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. LiTime doesn't list this cart, so plan a hold-down bracket. Source Power: the stock controller can draw up to 350A; this pack is rated 120A continuous, so expect it to cut out on steep hills or with a heavy load.

    LiTime 48V 60Ah battery: 3.1 kWh · 120 A · 5 years warranty · battery only

    28 $800 Official site →

  15. Allied Lithium RS Commercial 48V 105Ah

    Fits by size — add a hold-down At 17.5" × 10.8" × 9", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. Allied Lithium doesn't list this cart, so plan a hold-down bracket. Source

    Allied Lithium RS Commercial 48V 105Ah: 5.4 kWh · current n/a · 10 years warranty

    — $2,700 Official site →

  16. TEMGO 48V 100Ah kit

    Fits by size — add a hold-down At 20.7" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. TEMGO doesn't list this cart, so plan a hold-down bracket. Source

    TEMGO 48V 100Ah kit: 5.1 kWh · 200 A · 1 year warranty

    — See price on Amazon Amazon →

  17. LOSSIGY 48V 100Ah kit

    Fits by size — add a hold-down At 20.5" × 10.6" × 8.7", it is no larger in footprint than the Fleet Lithium 168Ah Star EV Sirius pack (22" × 12" × 10.6"), documented to fit this cart, and no taller than the stock batteries. LOSSIGY doesn't list this cart, so plan a hold-down bracket. Source

    LOSSIGY 48V 100Ah kit: 5.1 kWh · current n/a · 5 years warranty

    — See price on Amazon Amazon →

  18. RELiON InSight 48V Two Battery Bundle

    Not confirmed — measure your tray RELiON doesn't list this cart and we have no measurement to rule on — measure your tray against the pack size on the brand page.

    RELiON InSight 48V Two Battery Bundle: 3.1 kWh · current n/a · 10 years warranty

    — $2,815 Official site →
10 48V kits that won't fit the Star EV Sirius / Capella, 2017 and newer (lead-acid) — and why
  • Vatrer 48V 105Ah conversion kit — At 19.7" × 12.5" × 9.6", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • Epoch Batteries 48V 105Ah Big Box complete kit — At 18.1" × 13.4" × 9.8", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • RoyPow S51105L-Z 48V 105Ah — At 18.1" × 13.2" × 9.1", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • Vatrer 48V 105Ah self-heating kit — At 19.7" × 12.5" × 9.6", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • LiTime 48V 150Ah battery (300A) — At 20" × 13" × 10.5", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • Epoch Batteries 48V 65Ah Big Box complete kit — At 17.2" × 14.3" × 7.5", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • Epoch Batteries 48V 150Ah Big Box complete kit — At 19.8" × 15.4" × 9.8", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • Epoch Batteries 48V 230Ah Big Box complete kit — At 23.5" × 14.4" × 9.9", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • DC House 48V 50Ah metal case + charger — At 18.1" × 13.1" × 4.9", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source
  • BigBattery 48V HUSKY 2 PWR Essential Golf Cart Kit — At 18.1" × 12.6" × 9.8", it doesn't fit within any pack documented to fit this cart: it is wider than the largest one (Fleet Lithium 168Ah Star EV Sirius pack, 22" × 12" × 10.6"). Without modifying the tray, we don't count it as a fit. Source

Beyond the battery

What else you'll need for the Star EV Sirius / Capella (2017 and newer (lead-acid))

The parts owners most often forget — and that cause most "my cart won't move" problems.

A 48V lithium chargerIf your kit doesn't include one. Never reuse the lead-acid charger.A 48V-to-12V converterFor lights, horn and USB — many kits leave it out.A proper hold-downOne pack in a six-battery tray must not slide.The right charge plugYour receptacle may not match the new charger.

Star EV Sirius / Capella (2017 and newer (lead-acid)) lithium conversion: questions people ask

How much does it cost to convert a Star EV Sirius / Capella to lithium?

In our database, kits that fit the Star EV Sirius / Capella are listed between $800 and $2,700 on the brands' own sites (checked October 25, 2026). Add a 48V-to-12V converter if the kit doesn't include one, a charge plug for the Star EV DC charger receptacle, and installation if you don't do it yourself.

What is the best lithium battery kit for the Star EV Sirius / Capella?

For the Star EV Sirius / Capella, among kits the brand lists for this cart, the Epoch Batteries 48V 105Ah MINI kit (Club Car DS) has our highest score. The best choice still depends on your budget and terrain — see our three picks above.

Will a "universal" lithium battery fit my Star EV Sirius / Capella?

On the Star EV Sirius / Capella, usually, if the tray is big enough and you have a hold-down bracket. Measure length, width and height first and compare them with the kit size on each card.

Do I need a new charger for a lithium Star EV Sirius / Capella?

Yes. A lithium Star EV Sirius / Capella can't use its lead-acid charger, which has the wrong charging profile: you need a 58.4V lithium charger, which most kits include (check the card). This cart: no OBC documented — on-board 48V 18 A charger with remote LED.

Step by step, with the parts list: how to convert a golf cart to lithium · what it costs.

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