The RELiON Battery RB52 12V 52Ah Lithium Battery is a battery pack with 640 Wh of energy and a reserve capacity of 120 minutes at 25 A.
Last updated: 16 September 2026
Battery and charging
- Energy printed on the battery
- 640 Wh
- Battery capacity, as stated over time
- Published as 50 Ah until at least August 2019, with today's 640 Wh and 120 min
- Reserve capacity
- 120 minutes at 25 A
“Energy 640 Wh”
Source: relionbattery.com/products/lithium/rb52
“Nominal Capacity 50 Ah Capacity @ 25A 120 min Energy 640 Wh”
Source: web.archive.org/web/20190823211212/https://relionbattery.com/products/lithium/rb50
“Capacity @ 25A 120 min”
Source: relionbattery.com/products/lithium/rb52
Size and fit
- Series and parallel connection
- Up to 4 in series
“Maximum Batteries Connected in Series 4”
Source: relionbattery.com/products/lithium/rb52
Product identifiers
The codes printed on the product and its packaging.
- Model code
- RB52
Source: relionbattery.com/products/lithium/rb52
“RB52 12V 52Ah Deep Cycle Lithium Battery”
Devices whose figures this pack does not meet
Neither maker names the other. These devices publish a draw this pack’s own maker does not rate it to deliver continuously. That is a comparison of two documents and not a manufacturer’s refusal — check both against your own equipment before deciding anything.
- Minn Kota Terrova 55 lb (54" shaft, wireless remote)Figures compared — they do not meetView device: Minn Kota Terrova 55 lb (54" shaft, wireless remote) →
Minn Kota ask for “at least a 105 amp-hour rating”, in a paragraph about lead-acid: “The motor will operate with any lead acid, deep cycle marine 12-volt battery/batteries. For best results, use a deep cycle, marine battery with at least a 105 amp-hour rating.” This pack is Cylindrical - LiFePO4. For a lithium pack the same maker's thrust-to-capacity table names a different figure for this motor: “55 lb AGM or Lithium 100Ah 2–4 hours Most common setup” Those are two of Minn Kota's own numbers for two different chemistries, and an amp-hour rating does not carry from one to the other, so they are set out here rather than compared. This pack is rated 52 Ah and 50 A continuous.
Source: johnsonoutdoors.widen.net/content/zp8zgjh29h/pdf/Terrova-BT-Installation-2327132rj.pdf
Source: minnkota.johnsonoutdoors.com/us/blog/selecting-best-trolling-motor-battery
Sources
- RELiON — RB52 12V 52Ah Lithium BatteryManufacturer battery page
RELiON Battery
Source: relionbattery.com/products/lithium/rb52
Retrieved September 15, 2026
- 12V 50Ah Lithium Marine Battery | RELiONArchived document
Source: web.archive.org/web/20190823211212/https://relionbattery.com/products/lithium/rb50
Retrieved September 15, 2026